SlideShare uma empresa Scribd logo
1 de 12
Baixar para ler offline
Unit 4 Lab: StoichiometryCHEM 1806
Purpose: To practice the concept of Stoichiometry
Materials: Student Supplied – Distilled water, paper towels,
small paper cup, mug
LabPaq materials: 100 mL glass beaker, Funnel, 25 mL
cylinder, Goggles, Digital Scale, Weighing boat, 2.5 g Calcium
chloride, dehydrate, Filter paper, 2 g Sodium carbonate.
Procedure:
1. While wearing goggles, weigh out 1.0 g CaCl2 and put it into
the 100 mL beaker. Record the actual mass of CaCl2 you are
using in Table 1.
2. Add 25 mL of distilled water to the beaker and stir. This is
now the “Calcium chloride solution”
3. Calculate how much sodium carbonate you will need for a
full reaction. Write that calculation in the Results and
Discussion section.
4. Weigh out the calculated amount of Na2CO3 and put it in a
small paper cup. (Record actual mass in Data Table 1)
5. Add 25 mL distilled water to the paper cup and stir to make
“sodium carbonate solution.”
6. Pour the sodium carbonate solution into the beaker with the
calcium chloride solution.
7. Record observations. Write out the reaction of what occurred
in the results section. (The solid is calcium carbonate.)
8. Fold the filter paper in half, then in quarters. Record the
mass of the filter paper.
9. Place the filter paper in the funnel and open one side.
10. Place the funnel in a mug or other cup to balance it.
11. Carefully swirl and pour the contents of the beaker into the
filter paper. (Don’t let the solution overflow.)
12. Rinse the beaker with 1-3mL of distilled water and pour that
water into the filter paper as well. (If there is a little solid left
in the beaker, leave it. It is experimental error.)
13. When the liquid has drained, lay the filter paper and
precipitate on a plate or paper towels to allow it to dry. (mine
took overnight, some people take 3 days)
14. When dry, weigh the precipitate + filter paper, record it, and
calculate the mass of the precipitate.
15. In the discussion, calculate the theoretical yield and percent
yield.
(4 pts) Data:
Table 1: Data
Mass of CaCl2
Mass of Na2CO3 needed
Actual mass of Na2CO3 used
Observation of reaction
Mass of filter paper
Mass of filter paper + precip
Actual yield of Calcium Carbonate
1. (3 pts) Calculate how much Na2CO3 you need to completely
react your mass of CaCl2. (Show that calculation here)
2. (2 pts) Write out the reaction that occurred to form calcium
carbonate. Remember to identify the phases and balance the
equation.
3. (2 pts) Calculate the actual yield of Calcium Carbonate.
(Show your work)
4. (2 pts) Calculate the theoretical yield of Calcium Carbonate.
(Show your work)
5. (2 pts) Calculate your percent yield of Calcium Carbonate.
(Show your work)
Insert a picture of your filter paper with yield for 2 pts extra
credit. ;-)
When you are finished, save the file as LASTNAME_Stoich and
upload it to the Dropbox for Unit 4 Labs.
Unit 4 Lab: Ionic ReactionCHEM 1806
Purpose: To observe several ionic reactions and practice net
ionic equations
Materials: Student Supplied –distilled water
LabPaq materials: 24 well plate, 96 well plate, pipet (empty),
Ionic Reaction bag.
Procedure:
**The 24-well plate will hold the chemical droppers. The 96-
well plate is where the reactions will take place.
1. Load the well rows.
1. Place 2 drops of cobalt (II) nitrate solution into seven of the
A row wells.
2. Place 2 drops of copper (II) nitrate into seven of the B wells.
3. Place 2 drops of iron (III) nitrate into seven of the C wells.
4. Place 2 drops of barium nitrate into seven of the D wells.
5. Place 2 drops of nickel (II) nitrate into seven of the E wells.
When performing the following, NEVER TOUCH THE TIP OF
THE PIPET TO THE SOLUTION ALREADY IN THE WELL!
2. Load the well columns
6. Place 2 drops of sodium phosphate solution into five vertical
wells under column number 1.
7. Place 2 drops of sodium iodide solution into five vertical
wells under 2.
8. Place 2 drops of sodium sulfate solution into five vertical
wells under 3.
9. Place 2 drops of sodium chloride solution into five vertical
wells under 4.
10. Place 2 drops of sodium bicarbonate solution into five
vertical wells under 5.
11. Place 2 drops of sodium carbonate solution into five vertical
wells under 6.
12. Place 2 drops of sodium hydroxide solution into five
vertical wells under 7.
3. Record all observations. If the solution is anything but
transparent, a solid has been formed. Milky = precipitate.
Data Table: (2 pts)
1
2
3
4
5
6
7
A
B
C
D
E
Results and Discussion:
Insert a picture of your well plate with the reaction mixtures. (5
pts)
Based on your observations, choose 10 wells that created a
precipitate and write the net ionic equations. (8 pts)
When you are finished, save the file as LASTNAME_Ionic and
upload it to the Dropbox for Unit 4 Labs.
Unit 3 Lab: VSEPRCHEM 1806
A. Natural Orientation of Volumes about a Central Point.
This part necessitates you have 6 balloons. Hold or tie them
together in the quantity identified in the table and describe the
shape in the table below.
Balloon Arrangement
Description of the Shape
Two-Balloon Set
Three-Balloon Set
Four-Balloon Set
Five-Balloon Set
Six-Balloon Set
B. Valence Shell Pairs: Single Bonds
Fill in the table below for the corresponding compounds. The
shapes and other information on pages 4-6 of this lab will be
helpful.
Molecular
Shape
Number of Bonds
About Central Atom
Shape
Description
BF3
BeCl2
CH4
PF5
SF6
C. Valence Shell Pairs: Single Bonds and Non-Bonding electron
pairs
Fill in the table below for the corresponding compounds. The
shapes and other information on pages 4-6 of this lab will be
helpful.
Molecular
Formula
Number of Bonds and
Non-Bonding Pairs
Shape
Desrciption
NF3
H2S
H3O+
PH3
ClO2-
D. Valence Shell Pairs: Single and Double Bonds and Non-
Bonding electron pairs
Fill in the table below for the corresponding compounds. The
shapes and other information on pages 4-6 of this lab will be
helpful.
Formula
Number of Bonds and
Non-Bonding Electron Pairs
Shape
Description
CO32-
SO2
H2CO
SO3
SO32-
NO2-
PO33-
When you are done, please save this file as
LASTNAME_VSEPR and upload it to the Unit 3 Lab DropBox.
Unit 2 Lab: ID Metal IonsCHEM 1806
Purpose: To identify metal ions by the colors they produce in a
flame. The colors and their energies are discussed in this unit.
The color is produced by electrons being promoted and then
relaxing to the ground state electronic structure. As the
electrons move, energy is released and their energy is displayed
as photons of light. Depending on the energy, a different color
is released. Red is low energy; violet (purple) is high energy.
Materials: Student Supplied – Lighter or matches; 8 paper-
stemmed cotton swabs (Q-tips) NOT plastic stemmed ones
LabPaq materials: Burner fuel, Goggles, 24-well plate,
Experiment bag “Identification of Metallic Ions”
Procedure:
1. Use the 24-well plate as a chemical holder, as shown to the
right.
2. Place about 0.5mL (20 drops) of sodium nitrate in the first
well of your well plate.
3. Place the chemical container in the well below the chemical
to keep track of which chemical is where.
4. Repeat with the remaining chemicals.
5. Light the burner.
6. Soak a cotton end in the first chemical.
7. Pass the soaked cotton through the flame until there is a
change in the flame color. (It might take 6 passes) Move the
cotton through fairly rapidly so the cotton doesn’t burn.
8. Record the color change in the data table below.
9. Repeat steps 6-8 with the remaining chemicals, including the
unknown.
10. All chemicals can be rinsed down the sink. Extinguish the
flame by carefully replacing the cap over the flame.
Data Table: (2pts)
Sodium Nitrate
Barium Nitrate
Calcium Nitrate
Cupric Nitrate
Lithium Nitrate
Potassium Nitrate
Strontium Nitrate
Unknown
Flame Color
Results and Discussion:
1. (8 pts) Is there a trend in the color of the flame and
corresponding placement on the periodic table? Discuss in terms
of energy levels and colors observed.
2. (5 pts) What is the identity of your unknown?
3. (5 pts) Insert a picture of your lab set up (try to get a picture
of the colored flame too – it isn’t easy!)
4. That’s it. Quick lab.
When you are finished, save the file as LASTNAME_Metals and
upload it to the Dropbox for Unit 2 Labs.

Mais conteúdo relacionado

Semelhante a Unit 4 Lab StoichiometryCHEM 1806Purpose To practice the conce.docx

13 thermal-decomp-of-na hco3 (1)
13 thermal-decomp-of-na hco3 (1)13 thermal-decomp-of-na hco3 (1)
13 thermal-decomp-of-na hco3 (1)Dr Robert Craig PhD
 
Lab 9 Chemical Reactions IIPre-lab Questions1. Michelangelo u.docx
Lab 9 Chemical Reactions IIPre-lab Questions1. Michelangelo u.docxLab 9 Chemical Reactions IIPre-lab Questions1. Michelangelo u.docx
Lab 9 Chemical Reactions IIPre-lab Questions1. Michelangelo u.docxsmile790243
 
Synthesizing nickle ammonium chloride chemistry two
Synthesizing nickle ammonium chloride chemistry twoSynthesizing nickle ammonium chloride chemistry two
Synthesizing nickle ammonium chloride chemistry twoDr Robert Craig PhD
 
Chemistry 201 Laboratory- Harold Washington College Reac
Chemistry 201 Laboratory- Harold Washington College ReacChemistry 201 Laboratory- Harold Washington College Reac
Chemistry 201 Laboratory- Harold Washington College ReacJinElias52
 
Rate of Reaction
Rate of ReactionRate of Reaction
Rate of ReactionM BR
 
Chem 162 Lab 3 Gas Laws Pa.docx
Chem 162                                        Lab 3 Gas Laws Pa.docxChem 162                                        Lab 3 Gas Laws Pa.docx
Chem 162 Lab 3 Gas Laws Pa.docxbissacr
 
Describe What Happens When The Bunsen Burner
Describe What Happens When The Bunsen BurnerDescribe What Happens When The Bunsen Burner
Describe What Happens When The Bunsen BurnerSarah Robinson
 
Separation Of A Mixture Of Solids
Separation Of A Mixture Of SolidsSeparation Of A Mixture Of Solids
Separation Of A Mixture Of SolidsAngie Jorgensen
 
Disaster Readiness and Risk Reduction.pptx
 Disaster Readiness and Risk Reduction.pptx Disaster Readiness and Risk Reduction.pptx
Disaster Readiness and Risk Reduction.pptxKellyAnnPanganiban2
 
Lab report writing
Lab report writingLab report writing
Lab report writingvee177
 
Topic 4 Block A
Topic 4 Block ATopic 4 Block A
Topic 4 Block Afffuuuuu
 
In 1500 Words use the provided sources in each parts to answer the
In 1500 Words use the provided sources in each parts to answer theIn 1500 Words use the provided sources in each parts to answer the
In 1500 Words use the provided sources in each parts to answer theMalikPinckney86
 
Stoichiometry Lab – The Chemistry Behind Carbonates reacting with .docx
Stoichiometry Lab – The Chemistry Behind Carbonates reacting with .docxStoichiometry Lab – The Chemistry Behind Carbonates reacting with .docx
Stoichiometry Lab – The Chemistry Behind Carbonates reacting with .docxwhitneyleman54422
 
Simple Chemistry Experiments
Simple Chemistry ExperimentsSimple Chemistry Experiments
Simple Chemistry ExperimentsEmma Wise
 
An Experiment On The Reaction Of Acid And Decanting Has On...
An Experiment On The Reaction Of Acid And Decanting Has On...An Experiment On The Reaction Of Acid And Decanting Has On...
An Experiment On The Reaction Of Acid And Decanting Has On...Gina Buck
 
Simple Chemistry Experiments
Simple Chemistry ExperimentsSimple Chemistry Experiments
Simple Chemistry ExperimentsEmma Wise
 

Semelhante a Unit 4 Lab StoichiometryCHEM 1806Purpose To practice the conce.docx (20)

13 thermal-decomp-of-na hco3 (1)
13 thermal-decomp-of-na hco3 (1)13 thermal-decomp-of-na hco3 (1)
13 thermal-decomp-of-na hco3 (1)
 
Lab 9 Chemical Reactions IIPre-lab Questions1. Michelangelo u.docx
Lab 9 Chemical Reactions IIPre-lab Questions1. Michelangelo u.docxLab 9 Chemical Reactions IIPre-lab Questions1. Michelangelo u.docx
Lab 9 Chemical Reactions IIPre-lab Questions1. Michelangelo u.docx
 
Synthesizing nickle ammonium chloride chemistry two
Synthesizing nickle ammonium chloride chemistry twoSynthesizing nickle ammonium chloride chemistry two
Synthesizing nickle ammonium chloride chemistry two
 
Chemistry 201 Laboratory- Harold Washington College Reac
Chemistry 201 Laboratory- Harold Washington College ReacChemistry 201 Laboratory- Harold Washington College Reac
Chemistry 201 Laboratory- Harold Washington College Reac
 
Qualitative Analysis Lab
Qualitative Analysis LabQualitative Analysis Lab
Qualitative Analysis Lab
 
Rate of Reaction
Rate of ReactionRate of Reaction
Rate of Reaction
 
Chem 162 Lab 3 Gas Laws Pa.docx
Chem 162                                        Lab 3 Gas Laws Pa.docxChem 162                                        Lab 3 Gas Laws Pa.docx
Chem 162 Lab 3 Gas Laws Pa.docx
 
Describe What Happens When The Bunsen Burner
Describe What Happens When The Bunsen BurnerDescribe What Happens When The Bunsen Burner
Describe What Happens When The Bunsen Burner
 
Separation Of A Mixture Of Solids
Separation Of A Mixture Of SolidsSeparation Of A Mixture Of Solids
Separation Of A Mixture Of Solids
 
Disaster Readiness and Risk Reduction.pptx
 Disaster Readiness and Risk Reduction.pptx Disaster Readiness and Risk Reduction.pptx
Disaster Readiness and Risk Reduction.pptx
 
Lab report writing
Lab report writingLab report writing
Lab report writing
 
Topic 4 Block A
Topic 4 Block ATopic 4 Block A
Topic 4 Block A
 
In 1500 Words use the provided sources in each parts to answer the
In 1500 Words use the provided sources in each parts to answer theIn 1500 Words use the provided sources in each parts to answer the
In 1500 Words use the provided sources in each parts to answer the
 
Unit 1 2009
Unit 1 2009Unit 1 2009
Unit 1 2009
 
Stoichiometry Lab – The Chemistry Behind Carbonates reacting with .docx
Stoichiometry Lab – The Chemistry Behind Carbonates reacting with .docxStoichiometry Lab – The Chemistry Behind Carbonates reacting with .docx
Stoichiometry Lab – The Chemistry Behind Carbonates reacting with .docx
 
Simple Chemistry Experiments
Simple Chemistry ExperimentsSimple Chemistry Experiments
Simple Chemistry Experiments
 
An Experiment On The Reaction Of Acid And Decanting Has On...
An Experiment On The Reaction Of Acid And Decanting Has On...An Experiment On The Reaction Of Acid And Decanting Has On...
An Experiment On The Reaction Of Acid And Decanting Has On...
 
Lab4
Lab4Lab4
Lab4
 
K cl o3decomp05
K cl o3decomp05K cl o3decomp05
K cl o3decomp05
 
Simple Chemistry Experiments
Simple Chemistry ExperimentsSimple Chemistry Experiments
Simple Chemistry Experiments
 

Mais de dickonsondorris

Copyright © Jen-Wen Lin 2018 1 STA457 Time series .docx
Copyright © Jen-Wen Lin 2018   1 STA457 Time series .docxCopyright © Jen-Wen Lin 2018   1 STA457 Time series .docx
Copyright © Jen-Wen Lin 2018 1 STA457 Time series .docxdickonsondorris
 
Copyright © John Wiley & Sons, Inc. All rights reserved..docx
Copyright © John Wiley & Sons, Inc. All rights reserved..docxCopyright © John Wiley & Sons, Inc. All rights reserved..docx
Copyright © John Wiley & Sons, Inc. All rights reserved..docxdickonsondorris
 
Copyright © by The McGraw-Hill Companies, Inc. The Aztec Accou.docx
Copyright © by The McGraw-Hill Companies, Inc. The Aztec Accou.docxCopyright © by The McGraw-Hill Companies, Inc. The Aztec Accou.docx
Copyright © by The McGraw-Hill Companies, Inc. The Aztec Accou.docxdickonsondorris
 
Copyright © Cengage Learning. All rights reserved. CHAPTE.docx
Copyright © Cengage Learning.  All rights reserved. CHAPTE.docxCopyright © Cengage Learning.  All rights reserved. CHAPTE.docx
Copyright © Cengage Learning. All rights reserved. CHAPTE.docxdickonsondorris
 
Copyright © by Holt, Rinehart and Winston. All rights reserved.docx
Copyright © by Holt, Rinehart and Winston. All rights reserved.docxCopyright © by Holt, Rinehart and Winston. All rights reserved.docx
Copyright © by Holt, Rinehart and Winston. All rights reserved.docxdickonsondorris
 
Copyright © 2020 by Jones & Bartlett Learning, LLC, an Ascend .docx
Copyright © 2020 by Jones & Bartlett Learning, LLC, an Ascend .docxCopyright © 2020 by Jones & Bartlett Learning, LLC, an Ascend .docx
Copyright © 2020 by Jones & Bartlett Learning, LLC, an Ascend .docxdickonsondorris
 
Copyright © 2019, American Institute of Certified Public Accou.docx
Copyright © 2019, American Institute of Certified Public Accou.docxCopyright © 2019, American Institute of Certified Public Accou.docx
Copyright © 2019, American Institute of Certified Public Accou.docxdickonsondorris
 
Copyright © 2019 Pearson EducationPrinted by Zubaidah Alam.docx
Copyright © 2019 Pearson EducationPrinted by Zubaidah Alam.docxCopyright © 2019 Pearson EducationPrinted by Zubaidah Alam.docx
Copyright © 2019 Pearson EducationPrinted by Zubaidah Alam.docxdickonsondorris
 
Copyright © 2018 Pearson Education, Inc. All Rights ReservedChild .docx
Copyright © 2018 Pearson Education, Inc. All Rights ReservedChild .docxCopyright © 2018 Pearson Education, Inc. All Rights ReservedChild .docx
Copyright © 2018 Pearson Education, Inc. All Rights ReservedChild .docxdickonsondorris
 
Copyright © 2018 Pearson Education, Inc. C H A P T E R 6.docx
Copyright © 2018 Pearson Education, Inc. C H A P T E R  6.docxCopyright © 2018 Pearson Education, Inc. C H A P T E R  6.docx
Copyright © 2018 Pearson Education, Inc. C H A P T E R 6.docxdickonsondorris
 
Copyright © 2018 Capella University. Copy and distribution o.docx
Copyright © 2018 Capella University. Copy and distribution o.docxCopyright © 2018 Capella University. Copy and distribution o.docx
Copyright © 2018 Capella University. Copy and distribution o.docxdickonsondorris
 
Copyright © 2018 Pearson Education, Inc.C H A P T E R 3.docx
Copyright © 2018 Pearson Education, Inc.C H A P T E R  3.docxCopyright © 2018 Pearson Education, Inc.C H A P T E R  3.docx
Copyright © 2018 Pearson Education, Inc.C H A P T E R 3.docxdickonsondorris
 
Copyright © 2017, 2005, and 1994by Pearson Education, Inc..docx
Copyright © 2017, 2005, and 1994by Pearson Education, Inc..docxCopyright © 2017, 2005, and 1994by Pearson Education, Inc..docx
Copyright © 2017, 2005, and 1994by Pearson Education, Inc..docxdickonsondorris
 
Copyright © 2017 Wolters Kluwer Health Lippincott Williams.docx
Copyright © 2017 Wolters Kluwer Health  Lippincott Williams.docxCopyright © 2017 Wolters Kluwer Health  Lippincott Williams.docx
Copyright © 2017 Wolters Kluwer Health Lippincott Williams.docxdickonsondorris
 
Copyright © 2016, 2013, 2010 Pearson Education, Inc. All Right.docx
Copyright © 2016, 2013, 2010 Pearson Education, Inc. All Right.docxCopyright © 2016, 2013, 2010 Pearson Education, Inc. All Right.docx
Copyright © 2016, 2013, 2010 Pearson Education, Inc. All Right.docxdickonsondorris
 
Copyright © 2017 by University of Phoenix. All rights rese.docx
Copyright © 2017 by University of Phoenix. All rights rese.docxCopyright © 2017 by University of Phoenix. All rights rese.docx
Copyright © 2017 by University of Phoenix. All rights rese.docxdickonsondorris
 
Copyright © 2016 Pearson Education, Inc. .docx
Copyright © 2016 Pearson Education, Inc.                    .docxCopyright © 2016 Pearson Education, Inc.                    .docx
Copyright © 2016 Pearson Education, Inc. .docxdickonsondorris
 
Copyright © 2015 McGraw-Hill Education. All rights reserved. N.docx
Copyright © 2015 McGraw-Hill Education. All rights reserved. N.docxCopyright © 2015 McGraw-Hill Education. All rights reserved. N.docx
Copyright © 2015 McGraw-Hill Education. All rights reserved. N.docxdickonsondorris
 
Copyright © 2016 John Wiley & Sons, Inc. All rights reserved..docx
Copyright © 2016 John Wiley & Sons, Inc. All rights reserved..docxCopyright © 2016 John Wiley & Sons, Inc. All rights reserved..docx
Copyright © 2016 John Wiley & Sons, Inc. All rights reserved..docxdickonsondorris
 
Copyright © 2013, Elsevier Inc. All rights reserved...docx
Copyright © 2013, Elsevier Inc. All rights reserved...docxCopyright © 2013, Elsevier Inc. All rights reserved...docx
Copyright © 2013, Elsevier Inc. All rights reserved...docxdickonsondorris
 

Mais de dickonsondorris (20)

Copyright © Jen-Wen Lin 2018 1 STA457 Time series .docx
Copyright © Jen-Wen Lin 2018   1 STA457 Time series .docxCopyright © Jen-Wen Lin 2018   1 STA457 Time series .docx
Copyright © Jen-Wen Lin 2018 1 STA457 Time series .docx
 
Copyright © John Wiley & Sons, Inc. All rights reserved..docx
Copyright © John Wiley & Sons, Inc. All rights reserved..docxCopyright © John Wiley & Sons, Inc. All rights reserved..docx
Copyright © John Wiley & Sons, Inc. All rights reserved..docx
 
Copyright © by The McGraw-Hill Companies, Inc. The Aztec Accou.docx
Copyright © by The McGraw-Hill Companies, Inc. The Aztec Accou.docxCopyright © by The McGraw-Hill Companies, Inc. The Aztec Accou.docx
Copyright © by The McGraw-Hill Companies, Inc. The Aztec Accou.docx
 
Copyright © Cengage Learning. All rights reserved. CHAPTE.docx
Copyright © Cengage Learning.  All rights reserved. CHAPTE.docxCopyright © Cengage Learning.  All rights reserved. CHAPTE.docx
Copyright © Cengage Learning. All rights reserved. CHAPTE.docx
 
Copyright © by Holt, Rinehart and Winston. All rights reserved.docx
Copyright © by Holt, Rinehart and Winston. All rights reserved.docxCopyright © by Holt, Rinehart and Winston. All rights reserved.docx
Copyright © by Holt, Rinehart and Winston. All rights reserved.docx
 
Copyright © 2020 by Jones & Bartlett Learning, LLC, an Ascend .docx
Copyright © 2020 by Jones & Bartlett Learning, LLC, an Ascend .docxCopyright © 2020 by Jones & Bartlett Learning, LLC, an Ascend .docx
Copyright © 2020 by Jones & Bartlett Learning, LLC, an Ascend .docx
 
Copyright © 2019, American Institute of Certified Public Accou.docx
Copyright © 2019, American Institute of Certified Public Accou.docxCopyright © 2019, American Institute of Certified Public Accou.docx
Copyright © 2019, American Institute of Certified Public Accou.docx
 
Copyright © 2019 Pearson EducationPrinted by Zubaidah Alam.docx
Copyright © 2019 Pearson EducationPrinted by Zubaidah Alam.docxCopyright © 2019 Pearson EducationPrinted by Zubaidah Alam.docx
Copyright © 2019 Pearson EducationPrinted by Zubaidah Alam.docx
 
Copyright © 2018 Pearson Education, Inc. All Rights ReservedChild .docx
Copyright © 2018 Pearson Education, Inc. All Rights ReservedChild .docxCopyright © 2018 Pearson Education, Inc. All Rights ReservedChild .docx
Copyright © 2018 Pearson Education, Inc. All Rights ReservedChild .docx
 
Copyright © 2018 Pearson Education, Inc. C H A P T E R 6.docx
Copyright © 2018 Pearson Education, Inc. C H A P T E R  6.docxCopyright © 2018 Pearson Education, Inc. C H A P T E R  6.docx
Copyright © 2018 Pearson Education, Inc. C H A P T E R 6.docx
 
Copyright © 2018 Capella University. Copy and distribution o.docx
Copyright © 2018 Capella University. Copy and distribution o.docxCopyright © 2018 Capella University. Copy and distribution o.docx
Copyright © 2018 Capella University. Copy and distribution o.docx
 
Copyright © 2018 Pearson Education, Inc.C H A P T E R 3.docx
Copyright © 2018 Pearson Education, Inc.C H A P T E R  3.docxCopyright © 2018 Pearson Education, Inc.C H A P T E R  3.docx
Copyright © 2018 Pearson Education, Inc.C H A P T E R 3.docx
 
Copyright © 2017, 2005, and 1994by Pearson Education, Inc..docx
Copyright © 2017, 2005, and 1994by Pearson Education, Inc..docxCopyright © 2017, 2005, and 1994by Pearson Education, Inc..docx
Copyright © 2017, 2005, and 1994by Pearson Education, Inc..docx
 
Copyright © 2017 Wolters Kluwer Health Lippincott Williams.docx
Copyright © 2017 Wolters Kluwer Health  Lippincott Williams.docxCopyright © 2017 Wolters Kluwer Health  Lippincott Williams.docx
Copyright © 2017 Wolters Kluwer Health Lippincott Williams.docx
 
Copyright © 2016, 2013, 2010 Pearson Education, Inc. All Right.docx
Copyright © 2016, 2013, 2010 Pearson Education, Inc. All Right.docxCopyright © 2016, 2013, 2010 Pearson Education, Inc. All Right.docx
Copyright © 2016, 2013, 2010 Pearson Education, Inc. All Right.docx
 
Copyright © 2017 by University of Phoenix. All rights rese.docx
Copyright © 2017 by University of Phoenix. All rights rese.docxCopyright © 2017 by University of Phoenix. All rights rese.docx
Copyright © 2017 by University of Phoenix. All rights rese.docx
 
Copyright © 2016 Pearson Education, Inc. .docx
Copyright © 2016 Pearson Education, Inc.                    .docxCopyright © 2016 Pearson Education, Inc.                    .docx
Copyright © 2016 Pearson Education, Inc. .docx
 
Copyright © 2015 McGraw-Hill Education. All rights reserved. N.docx
Copyright © 2015 McGraw-Hill Education. All rights reserved. N.docxCopyright © 2015 McGraw-Hill Education. All rights reserved. N.docx
Copyright © 2015 McGraw-Hill Education. All rights reserved. N.docx
 
Copyright © 2016 John Wiley & Sons, Inc. All rights reserved..docx
Copyright © 2016 John Wiley & Sons, Inc. All rights reserved..docxCopyright © 2016 John Wiley & Sons, Inc. All rights reserved..docx
Copyright © 2016 John Wiley & Sons, Inc. All rights reserved..docx
 
Copyright © 2013, Elsevier Inc. All rights reserved...docx
Copyright © 2013, Elsevier Inc. All rights reserved...docxCopyright © 2013, Elsevier Inc. All rights reserved...docx
Copyright © 2013, Elsevier Inc. All rights reserved...docx
 

Último

How to Manage Cross-Selling in Odoo 17 Sales
How to Manage Cross-Selling in Odoo 17 SalesHow to Manage Cross-Selling in Odoo 17 Sales
How to Manage Cross-Selling in Odoo 17 SalesCeline George
 
Quality Assurance_GOOD LABORATORY PRACTICE
Quality Assurance_GOOD LABORATORY PRACTICEQuality Assurance_GOOD LABORATORY PRACTICE
Quality Assurance_GOOD LABORATORY PRACTICESayali Powar
 
M-2- General Reactions of amino acids.pptx
M-2- General Reactions of amino acids.pptxM-2- General Reactions of amino acids.pptx
M-2- General Reactions of amino acids.pptxDr. Santhosh Kumar. N
 
2024.03.23 What do successful readers do - Sandy Millin for PARK.pptx
2024.03.23 What do successful readers do - Sandy Millin for PARK.pptx2024.03.23 What do successful readers do - Sandy Millin for PARK.pptx
2024.03.23 What do successful readers do - Sandy Millin for PARK.pptxSandy Millin
 
PISA-VET launch_El Iza Mohamedou_19 March 2024.pptx
PISA-VET launch_El Iza Mohamedou_19 March 2024.pptxPISA-VET launch_El Iza Mohamedou_19 March 2024.pptx
PISA-VET launch_El Iza Mohamedou_19 March 2024.pptxEduSkills OECD
 
How to Add a many2many Relational Field in Odoo 17
How to Add a many2many Relational Field in Odoo 17How to Add a many2many Relational Field in Odoo 17
How to Add a many2many Relational Field in Odoo 17Celine George
 
CHUYÊN ĐỀ DẠY THÊM TIẾNG ANH LỚP 11 - GLOBAL SUCCESS - NĂM HỌC 2023-2024 - HK...
CHUYÊN ĐỀ DẠY THÊM TIẾNG ANH LỚP 11 - GLOBAL SUCCESS - NĂM HỌC 2023-2024 - HK...CHUYÊN ĐỀ DẠY THÊM TIẾNG ANH LỚP 11 - GLOBAL SUCCESS - NĂM HỌC 2023-2024 - HK...
CHUYÊN ĐỀ DẠY THÊM TIẾNG ANH LỚP 11 - GLOBAL SUCCESS - NĂM HỌC 2023-2024 - HK...Nguyen Thanh Tu Collection
 
Patterns of Written Texts Across Disciplines.pptx
Patterns of Written Texts Across Disciplines.pptxPatterns of Written Texts Across Disciplines.pptx
Patterns of Written Texts Across Disciplines.pptxMYDA ANGELICA SUAN
 
How to Add Existing Field in One2Many Tree View in Odoo 17
How to Add Existing Field in One2Many Tree View in Odoo 17How to Add Existing Field in One2Many Tree View in Odoo 17
How to Add Existing Field in One2Many Tree View in Odoo 17Celine George
 
Prescribed medication order and communication skills.pptx
Prescribed medication order and communication skills.pptxPrescribed medication order and communication skills.pptx
Prescribed medication order and communication skills.pptxraviapr7
 
Patient Counselling. Definition of patient counseling; steps involved in pati...
Patient Counselling. Definition of patient counseling; steps involved in pati...Patient Counselling. Definition of patient counseling; steps involved in pati...
Patient Counselling. Definition of patient counseling; steps involved in pati...raviapr7
 
How to Solve Singleton Error in the Odoo 17
How to Solve Singleton Error in the  Odoo 17How to Solve Singleton Error in the  Odoo 17
How to Solve Singleton Error in the Odoo 17Celine George
 
Human-AI Co-Creation of Worked Examples for Programming Classes
Human-AI Co-Creation of Worked Examples for Programming ClassesHuman-AI Co-Creation of Worked Examples for Programming Classes
Human-AI Co-Creation of Worked Examples for Programming ClassesMohammad Hassany
 
DUST OF SNOW_BY ROBERT FROST_EDITED BY_ TANMOY MISHRA
DUST OF SNOW_BY ROBERT FROST_EDITED BY_ TANMOY MISHRADUST OF SNOW_BY ROBERT FROST_EDITED BY_ TANMOY MISHRA
DUST OF SNOW_BY ROBERT FROST_EDITED BY_ TANMOY MISHRATanmoy Mishra
 
How to Show Error_Warning Messages in Odoo 17
How to Show Error_Warning Messages in Odoo 17How to Show Error_Warning Messages in Odoo 17
How to Show Error_Warning Messages in Odoo 17Celine George
 
UKCGE Parental Leave Discussion March 2024
UKCGE Parental Leave Discussion March 2024UKCGE Parental Leave Discussion March 2024
UKCGE Parental Leave Discussion March 2024UKCGE
 
CAULIFLOWER BREEDING 1 Parmar pptx
CAULIFLOWER BREEDING 1 Parmar pptxCAULIFLOWER BREEDING 1 Parmar pptx
CAULIFLOWER BREEDING 1 Parmar pptxSaurabhParmar42
 
The Singapore Teaching Practice document
The Singapore Teaching Practice documentThe Singapore Teaching Practice document
The Singapore Teaching Practice documentXsasf Sfdfasd
 

Último (20)

How to Manage Cross-Selling in Odoo 17 Sales
How to Manage Cross-Selling in Odoo 17 SalesHow to Manage Cross-Selling in Odoo 17 Sales
How to Manage Cross-Selling in Odoo 17 Sales
 
Quality Assurance_GOOD LABORATORY PRACTICE
Quality Assurance_GOOD LABORATORY PRACTICEQuality Assurance_GOOD LABORATORY PRACTICE
Quality Assurance_GOOD LABORATORY PRACTICE
 
M-2- General Reactions of amino acids.pptx
M-2- General Reactions of amino acids.pptxM-2- General Reactions of amino acids.pptx
M-2- General Reactions of amino acids.pptx
 
2024.03.23 What do successful readers do - Sandy Millin for PARK.pptx
2024.03.23 What do successful readers do - Sandy Millin for PARK.pptx2024.03.23 What do successful readers do - Sandy Millin for PARK.pptx
2024.03.23 What do successful readers do - Sandy Millin for PARK.pptx
 
PISA-VET launch_El Iza Mohamedou_19 March 2024.pptx
PISA-VET launch_El Iza Mohamedou_19 March 2024.pptxPISA-VET launch_El Iza Mohamedou_19 March 2024.pptx
PISA-VET launch_El Iza Mohamedou_19 March 2024.pptx
 
How to Add a many2many Relational Field in Odoo 17
How to Add a many2many Relational Field in Odoo 17How to Add a many2many Relational Field in Odoo 17
How to Add a many2many Relational Field in Odoo 17
 
CHUYÊN ĐỀ DẠY THÊM TIẾNG ANH LỚP 11 - GLOBAL SUCCESS - NĂM HỌC 2023-2024 - HK...
CHUYÊN ĐỀ DẠY THÊM TIẾNG ANH LỚP 11 - GLOBAL SUCCESS - NĂM HỌC 2023-2024 - HK...CHUYÊN ĐỀ DẠY THÊM TIẾNG ANH LỚP 11 - GLOBAL SUCCESS - NĂM HỌC 2023-2024 - HK...
CHUYÊN ĐỀ DẠY THÊM TIẾNG ANH LỚP 11 - GLOBAL SUCCESS - NĂM HỌC 2023-2024 - HK...
 
Patterns of Written Texts Across Disciplines.pptx
Patterns of Written Texts Across Disciplines.pptxPatterns of Written Texts Across Disciplines.pptx
Patterns of Written Texts Across Disciplines.pptx
 
How to Add Existing Field in One2Many Tree View in Odoo 17
How to Add Existing Field in One2Many Tree View in Odoo 17How to Add Existing Field in One2Many Tree View in Odoo 17
How to Add Existing Field in One2Many Tree View in Odoo 17
 
Prescribed medication order and communication skills.pptx
Prescribed medication order and communication skills.pptxPrescribed medication order and communication skills.pptx
Prescribed medication order and communication skills.pptx
 
Patient Counselling. Definition of patient counseling; steps involved in pati...
Patient Counselling. Definition of patient counseling; steps involved in pati...Patient Counselling. Definition of patient counseling; steps involved in pati...
Patient Counselling. Definition of patient counseling; steps involved in pati...
 
How to Solve Singleton Error in the Odoo 17
How to Solve Singleton Error in the  Odoo 17How to Solve Singleton Error in the  Odoo 17
How to Solve Singleton Error in the Odoo 17
 
Human-AI Co-Creation of Worked Examples for Programming Classes
Human-AI Co-Creation of Worked Examples for Programming ClassesHuman-AI Co-Creation of Worked Examples for Programming Classes
Human-AI Co-Creation of Worked Examples for Programming Classes
 
DUST OF SNOW_BY ROBERT FROST_EDITED BY_ TANMOY MISHRA
DUST OF SNOW_BY ROBERT FROST_EDITED BY_ TANMOY MISHRADUST OF SNOW_BY ROBERT FROST_EDITED BY_ TANMOY MISHRA
DUST OF SNOW_BY ROBERT FROST_EDITED BY_ TANMOY MISHRA
 
Prelims of Kant get Marx 2.0: a general politics quiz
Prelims of Kant get Marx 2.0: a general politics quizPrelims of Kant get Marx 2.0: a general politics quiz
Prelims of Kant get Marx 2.0: a general politics quiz
 
How to Show Error_Warning Messages in Odoo 17
How to Show Error_Warning Messages in Odoo 17How to Show Error_Warning Messages in Odoo 17
How to Show Error_Warning Messages in Odoo 17
 
UKCGE Parental Leave Discussion March 2024
UKCGE Parental Leave Discussion March 2024UKCGE Parental Leave Discussion March 2024
UKCGE Parental Leave Discussion March 2024
 
CAULIFLOWER BREEDING 1 Parmar pptx
CAULIFLOWER BREEDING 1 Parmar pptxCAULIFLOWER BREEDING 1 Parmar pptx
CAULIFLOWER BREEDING 1 Parmar pptx
 
Finals of Kant get Marx 2.0 : a general politics quiz
Finals of Kant get Marx 2.0 : a general politics quizFinals of Kant get Marx 2.0 : a general politics quiz
Finals of Kant get Marx 2.0 : a general politics quiz
 
The Singapore Teaching Practice document
The Singapore Teaching Practice documentThe Singapore Teaching Practice document
The Singapore Teaching Practice document
 

Unit 4 Lab StoichiometryCHEM 1806Purpose To practice the conce.docx

  • 1. Unit 4 Lab: StoichiometryCHEM 1806 Purpose: To practice the concept of Stoichiometry Materials: Student Supplied – Distilled water, paper towels, small paper cup, mug LabPaq materials: 100 mL glass beaker, Funnel, 25 mL cylinder, Goggles, Digital Scale, Weighing boat, 2.5 g Calcium chloride, dehydrate, Filter paper, 2 g Sodium carbonate. Procedure: 1. While wearing goggles, weigh out 1.0 g CaCl2 and put it into the 100 mL beaker. Record the actual mass of CaCl2 you are using in Table 1. 2. Add 25 mL of distilled water to the beaker and stir. This is now the “Calcium chloride solution” 3. Calculate how much sodium carbonate you will need for a full reaction. Write that calculation in the Results and Discussion section. 4. Weigh out the calculated amount of Na2CO3 and put it in a small paper cup. (Record actual mass in Data Table 1) 5. Add 25 mL distilled water to the paper cup and stir to make “sodium carbonate solution.” 6. Pour the sodium carbonate solution into the beaker with the calcium chloride solution. 7. Record observations. Write out the reaction of what occurred in the results section. (The solid is calcium carbonate.) 8. Fold the filter paper in half, then in quarters. Record the mass of the filter paper. 9. Place the filter paper in the funnel and open one side. 10. Place the funnel in a mug or other cup to balance it. 11. Carefully swirl and pour the contents of the beaker into the filter paper. (Don’t let the solution overflow.) 12. Rinse the beaker with 1-3mL of distilled water and pour that water into the filter paper as well. (If there is a little solid left in the beaker, leave it. It is experimental error.) 13. When the liquid has drained, lay the filter paper and
  • 2. precipitate on a plate or paper towels to allow it to dry. (mine took overnight, some people take 3 days) 14. When dry, weigh the precipitate + filter paper, record it, and calculate the mass of the precipitate. 15. In the discussion, calculate the theoretical yield and percent yield. (4 pts) Data: Table 1: Data Mass of CaCl2 Mass of Na2CO3 needed Actual mass of Na2CO3 used Observation of reaction Mass of filter paper Mass of filter paper + precip Actual yield of Calcium Carbonate 1. (3 pts) Calculate how much Na2CO3 you need to completely react your mass of CaCl2. (Show that calculation here) 2. (2 pts) Write out the reaction that occurred to form calcium carbonate. Remember to identify the phases and balance the equation. 3. (2 pts) Calculate the actual yield of Calcium Carbonate. (Show your work) 4. (2 pts) Calculate the theoretical yield of Calcium Carbonate. (Show your work)
  • 3. 5. (2 pts) Calculate your percent yield of Calcium Carbonate. (Show your work) Insert a picture of your filter paper with yield for 2 pts extra credit. ;-) When you are finished, save the file as LASTNAME_Stoich and upload it to the Dropbox for Unit 4 Labs. Unit 4 Lab: Ionic ReactionCHEM 1806 Purpose: To observe several ionic reactions and practice net ionic equations Materials: Student Supplied –distilled water LabPaq materials: 24 well plate, 96 well plate, pipet (empty), Ionic Reaction bag. Procedure: **The 24-well plate will hold the chemical droppers. The 96- well plate is where the reactions will take place. 1. Load the well rows. 1. Place 2 drops of cobalt (II) nitrate solution into seven of the A row wells. 2. Place 2 drops of copper (II) nitrate into seven of the B wells. 3. Place 2 drops of iron (III) nitrate into seven of the C wells. 4. Place 2 drops of barium nitrate into seven of the D wells. 5. Place 2 drops of nickel (II) nitrate into seven of the E wells. When performing the following, NEVER TOUCH THE TIP OF THE PIPET TO THE SOLUTION ALREADY IN THE WELL! 2. Load the well columns 6. Place 2 drops of sodium phosphate solution into five vertical wells under column number 1. 7. Place 2 drops of sodium iodide solution into five vertical wells under 2. 8. Place 2 drops of sodium sulfate solution into five vertical wells under 3. 9. Place 2 drops of sodium chloride solution into five vertical wells under 4.
  • 4. 10. Place 2 drops of sodium bicarbonate solution into five vertical wells under 5. 11. Place 2 drops of sodium carbonate solution into five vertical wells under 6. 12. Place 2 drops of sodium hydroxide solution into five vertical wells under 7. 3. Record all observations. If the solution is anything but transparent, a solid has been formed. Milky = precipitate. Data Table: (2 pts) 1 2 3 4 5 6 7 A B
  • 5. C D E Results and Discussion: Insert a picture of your well plate with the reaction mixtures. (5 pts) Based on your observations, choose 10 wells that created a precipitate and write the net ionic equations. (8 pts) When you are finished, save the file as LASTNAME_Ionic and
  • 6. upload it to the Dropbox for Unit 4 Labs. Unit 3 Lab: VSEPRCHEM 1806 A. Natural Orientation of Volumes about a Central Point. This part necessitates you have 6 balloons. Hold or tie them together in the quantity identified in the table and describe the shape in the table below. Balloon Arrangement Description of the Shape Two-Balloon Set Three-Balloon Set Four-Balloon Set Five-Balloon Set Six-Balloon Set B. Valence Shell Pairs: Single Bonds
  • 7. Fill in the table below for the corresponding compounds. The shapes and other information on pages 4-6 of this lab will be helpful. Molecular Shape Number of Bonds About Central Atom Shape Description BF3 BeCl2 CH4 PF5 SF6
  • 8. C. Valence Shell Pairs: Single Bonds and Non-Bonding electron pairs Fill in the table below for the corresponding compounds. The shapes and other information on pages 4-6 of this lab will be helpful. Molecular Formula Number of Bonds and Non-Bonding Pairs Shape Desrciption NF3 H2S H3O+ PH3 ClO2-
  • 9. D. Valence Shell Pairs: Single and Double Bonds and Non- Bonding electron pairs Fill in the table below for the corresponding compounds. The shapes and other information on pages 4-6 of this lab will be helpful. Formula Number of Bonds and Non-Bonding Electron Pairs Shape Description CO32- SO2 H2CO SO3
  • 10. SO32- NO2- PO33- When you are done, please save this file as LASTNAME_VSEPR and upload it to the Unit 3 Lab DropBox. Unit 2 Lab: ID Metal IonsCHEM 1806 Purpose: To identify metal ions by the colors they produce in a flame. The colors and their energies are discussed in this unit.
  • 11. The color is produced by electrons being promoted and then relaxing to the ground state electronic structure. As the electrons move, energy is released and their energy is displayed as photons of light. Depending on the energy, a different color is released. Red is low energy; violet (purple) is high energy. Materials: Student Supplied – Lighter or matches; 8 paper- stemmed cotton swabs (Q-tips) NOT plastic stemmed ones LabPaq materials: Burner fuel, Goggles, 24-well plate, Experiment bag “Identification of Metallic Ions” Procedure: 1. Use the 24-well plate as a chemical holder, as shown to the right. 2. Place about 0.5mL (20 drops) of sodium nitrate in the first well of your well plate. 3. Place the chemical container in the well below the chemical to keep track of which chemical is where. 4. Repeat with the remaining chemicals. 5. Light the burner. 6. Soak a cotton end in the first chemical. 7. Pass the soaked cotton through the flame until there is a change in the flame color. (It might take 6 passes) Move the cotton through fairly rapidly so the cotton doesn’t burn. 8. Record the color change in the data table below. 9. Repeat steps 6-8 with the remaining chemicals, including the unknown. 10. All chemicals can be rinsed down the sink. Extinguish the flame by carefully replacing the cap over the flame. Data Table: (2pts) Sodium Nitrate Barium Nitrate Calcium Nitrate Cupric Nitrate Lithium Nitrate Potassium Nitrate Strontium Nitrate
  • 12. Unknown Flame Color Results and Discussion: 1. (8 pts) Is there a trend in the color of the flame and corresponding placement on the periodic table? Discuss in terms of energy levels and colors observed. 2. (5 pts) What is the identity of your unknown? 3. (5 pts) Insert a picture of your lab set up (try to get a picture of the colored flame too – it isn’t easy!) 4. That’s it. Quick lab. When you are finished, save the file as LASTNAME_Metals and upload it to the Dropbox for Unit 2 Labs.