1.What is the conjugate base of H2C2O4?
2.Which of the following acids and bases are weak?
HNO3 HF LiOH CH3NH2 H2SO4
3.If a solution contains a hydrogen ion concentration of 6.21 x 10-5 M, what is the [OH-] and is the solution acidic or basic?
4.What is the [H+] of a solution with a pOH of 8.21?
1.What is the conjugate base of H2C2O4?
2.Which of the following acids and bases are weak?
HNO3 HF LiOH CH3NH2 H2SO4
3.If a solution contains a hydrogen ion concentration of 6.21 x 10-5 M, what is the [OH-] and is the solution acidic or basic?
4.What is the [H+] of a solution with a pOH of 8.21?
1.What is the conjugate base of H2C2O4?
2.Which of the following acids and bases are weak?
HNO3 HF LiOH CH3NH2 H2SO4
3.If a solution contains a hydrogen ion concentration of 6.21 x 10-5 M, what is the [OH-] and is the solution acidic or basic?
4.What is the [H+] of a solution with a pOH of 8.21?
Solution
1. The conjugate base of H2C2O4 is HC2O4-
2. Strong acid: HNO3, H2SO4
Strong base: LiOH
Weak acid:Â Â HF
Weak base: CH3NH2
3.
[H+] = 6.21 x 10 -5 M
pH = -loh[H+]
pH = -log[6.21 x 10 -5 M]
pH = 4.20
Now, pOH = 14 - pH
pOH = 14 - 4.2
pOH = 9.8
Now, [OH-] = 10 -pOH
[OH-] = 10 -9.8
[OH-] = 1.58 x 10 -10 M (acidic solution)
4.
pH = 14 - pOH
pH = 14 - 8.21
pH = 5.79
[H+] = 10 -pH
[H+] = 10 -5.79
[H+] = 1.62 x 10 -6 M
.
1-What is the conjugate base of H2C2O4- 2-Which of the following acid.docx
1. 1.What is the conjugate base of H2C2O4?
2.Which of the following acids and bases are weak?
HNO3 HF LiOH CH3NH2 H2SO4
3.If a solution contains a hydrogen ion concentration of 6.21 x 10-5 M, what is the [OH-] and is
the solution acidic or basic?
4.What is the [H+] of a solution with a pOH of 8.21?
1.What is the conjugate base of H2C2O4?
2.Which of the following acids and bases are weak?
HNO3 HF LiOH CH3NH2 H2SO4
3.If a solution contains a hydrogen ion concentration of 6.21 x 10-5 M, what is the [OH-] and is
the solution acidic or basic?
4.What is the [H+] of a solution with a pOH of 8.21?
1.What is the conjugate base of H2C2O4?
2.Which of the following acids and bases are weak?
HNO3 HF LiOH CH3NH2 H2SO4
3.If a solution contains a hydrogen ion concentration of 6.21 x 10-5 M, what is the [OH-] and is
the solution acidic or basic?
4.What is the [H+] of a solution with a pOH of 8.21?
Solution
1. The conjugate base of H2C2O4 is HC2O4-
2. Strong acid: HNO3, H2SO4
Strong base: LiOH
![1.What is the conjugate base of H2C2O4?
2.Which of the following acids and bases are weak?
HNO3 HF LiOH CH3NH2 H2SO4
3.If a solution contains a hydrogen ion concentration of 6.21 x 10-5 M, what is the [OH-] and is
the solution acidic or basic?
4.What is the [H+] of a solution with a pOH of 8.21?
1.What is the conjugate base of H2C2O4?
2.Which of the following acids and bases are weak?
HNO3 HF LiOH CH3NH2 H2SO4
3.If a solution contains a hydrogen ion concentration of 6.21 x 10-5 M, what is the [OH-] and is
the solution acidic or basic?
4.What is the [H+] of a solution with a pOH of 8.21?
1.What is the conjugate base of H2C2O4?
2.Which of the following acids and bases are weak?
HNO3 HF LiOH CH3NH2 H2SO4
3.If a solution contains a hydrogen ion concentration of 6.21 x 10-5 M, what is the [OH-] and is
the solution acidic or basic?
4.What is the [H+] of a solution with a pOH of 8.21?
Solution
1. The conjugate base of H2C2O4 is HC2O4-
2. Strong acid: HNO3, H2SO4
Strong base: LiOH](https://image.slidesharecdn.com/1-whatistheconjugatebaseofh2c2o4-2-whichofthefollowingacid-230208171947-a3e56883/85/1-What-is-the-conjugate-base-of-H2C2O4-2-Which-of-the-following-acid-docx-1-320.jpg)
![Weak acid:Â Â HF
Weak base: CH3NH2
3.
[H+] = 6.21 x 10 -5
M
pH = -loh[H+]
pH = -log[6.21 x 10 -5
M]
pH = 4.20
Now, pOH = 14 - pH
pOH = 14 - 4.2
pOH = 9.8
Now, [OH-] = 10 -pOH
[OH-] = 10 -9.8
[OH-] = 1.58 x 10 -10 M (acidic solution)
4.
pH = 14 - pOH
pH = 14 - 8.21
pH = 5.79
[H+] = 10 -pH
[H+] = 10 -5.79
[H+] = 1.62 x 10 -6 M](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)