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Exercício 1. Dado quanto vale cada figura na Tabela abaixo, responda:
ⴲ = 1 ⵙ = 19 ⦶ = 12 ✤ = 16 ✩ = 39 ♣ = 40 ✿ = 7
☻ = 32 ♠ = 14 ♡ = 36 ♢ = 23 ❀ = 56 ♤ = 24 ♥ = 137
Qual é o valor de cada conjunto de figuras apresentado a seguir?
Exemplo: ⦶✤ = 12 + 16 = 28
ⴲⵙ = __________________________________________ ⴲ♡ = ___________________________________________
⦶✤✤ = _______________________________________ ♢♡ = ____________________________________________
☻✤✤✤ = _____________________________________ ♠ⴲⴲⴲ = ________________________________________
♠✤✤ = ________________________________________ ⦶ⴲⴲⴲⴲ = _____________________________________
♣✤ = __________________________________________ ✩♠✤✤✤ = ______________________________________
♠♠ = ____________________________________________ ✤✤ = ___________________________________________
♤☻✤✤✤✤ = _________________________________ ♥☻ = ____________________________________________
✿✿✤ = _______________________________________ ⴲ♠✤✤✤ = ______________________________________
❀♡♡♡ = ______________________________________
Você pode usar esse campo para rascunho! () Não rabisque a carteira. Não seja um vândalo, patife
e desprezível que depreda patrimônio público!
6
O que você fez no exercício anterior foi calcular a massa molar de várias substâncias químicas. A
tabela com as figuras, na realidade, contém os valores das massas molares dos átomos em g/mol.
H = 1 F = 19 C = 12 O = 16 K = 39 Ca = 40 Li = 7
S = 32 N = 14 Cl = 36 Na = 23 Fe = 56 Mg = 24 Ba = 137
Dessa forma, a tabela com o conjunto de figuras são as seguintes substâncias. Não se esqueça de
colocar a unidade (g/mol) no resultado final.
(Preencha com a suas respectivas massas molares)
HF = ________________________________ HCl = ________________________________
CO2 = _______________________________ NaCl = _______________________________
SO3 = _______________________________ NH3 = ________________________________
NO2 = _______________________________ CH4 = ________________________________
CaO = _______________________________ KNO3= _______________________________
N2 = ________________________________ O2 = _________________________________
MgSO4 = _____________________________ BaS = ________________________________
Li2O = _______________________________ HNO3 = _______________________________
FeCl3 = ______________________________
Exercício 2: Agora vamos praticar. Com os valores da massa molar (em g/mol) dos elementos na
Tabela abaixo:
H = 1 F = 19 C = 12 O = 16 K = 39 Ca = 40 Li = 7 Al = 27 P = 31
S = 32 N = 14 Cl = 36 Na = 23 Fe = 56 Mg = 24 Ba = 137 Ag = 108
Calcule o valor da massa molar das substâncias abaixo. Não se esqueça de colocar a unidade
(g/mol) no resultado final.
a) NaOH b) HNO2
c) HCN d) H3PO4
e) K2HPO4 f) AgNO3
g) H2SO4 h) LiOH
i) Fe(OH)3 j) NaClO
k) NH4OH l) NaH2PO4
m) Al2O3 n) Ca3(PO4)2
o) Mg(OH)3 p) HNO3
q) C12H22O11 r) C3H5N3O9
s) HClO4 t) C6H12O6

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Guia de estudos mol

  • 1. 5 Exercício 1. Dado quanto vale cada figura na Tabela abaixo, responda: ⴲ = 1 ⵙ = 19 ⦶ = 12 ✤ = 16 ✩ = 39 ♣ = 40 ✿ = 7 ☻ = 32 ♠ = 14 ♡ = 36 ♢ = 23 ❀ = 56 ♤ = 24 ♥ = 137 Qual é o valor de cada conjunto de figuras apresentado a seguir? Exemplo: ⦶✤ = 12 + 16 = 28 ⴲⵙ = __________________________________________ ⴲ♡ = ___________________________________________ ⦶✤✤ = _______________________________________ ♢♡ = ____________________________________________ ☻✤✤✤ = _____________________________________ ♠ⴲⴲⴲ = ________________________________________ ♠✤✤ = ________________________________________ ⦶ⴲⴲⴲⴲ = _____________________________________ ♣✤ = __________________________________________ ✩♠✤✤✤ = ______________________________________ ♠♠ = ____________________________________________ ✤✤ = ___________________________________________ ♤☻✤✤✤✤ = _________________________________ ♥☻ = ____________________________________________ ✿✿✤ = _______________________________________ ⴲ♠✤✤✤ = ______________________________________ ❀♡♡♡ = ______________________________________ Você pode usar esse campo para rascunho! () Não rabisque a carteira. Não seja um vândalo, patife e desprezível que depreda patrimônio público!
  • 2. 6 O que você fez no exercício anterior foi calcular a massa molar de várias substâncias químicas. A tabela com as figuras, na realidade, contém os valores das massas molares dos átomos em g/mol. H = 1 F = 19 C = 12 O = 16 K = 39 Ca = 40 Li = 7 S = 32 N = 14 Cl = 36 Na = 23 Fe = 56 Mg = 24 Ba = 137 Dessa forma, a tabela com o conjunto de figuras são as seguintes substâncias. Não se esqueça de colocar a unidade (g/mol) no resultado final. (Preencha com a suas respectivas massas molares) HF = ________________________________ HCl = ________________________________ CO2 = _______________________________ NaCl = _______________________________ SO3 = _______________________________ NH3 = ________________________________ NO2 = _______________________________ CH4 = ________________________________ CaO = _______________________________ KNO3= _______________________________ N2 = ________________________________ O2 = _________________________________ MgSO4 = _____________________________ BaS = ________________________________ Li2O = _______________________________ HNO3 = _______________________________ FeCl3 = ______________________________ Exercício 2: Agora vamos praticar. Com os valores da massa molar (em g/mol) dos elementos na Tabela abaixo: H = 1 F = 19 C = 12 O = 16 K = 39 Ca = 40 Li = 7 Al = 27 P = 31 S = 32 N = 14 Cl = 36 Na = 23 Fe = 56 Mg = 24 Ba = 137 Ag = 108 Calcule o valor da massa molar das substâncias abaixo. Não se esqueça de colocar a unidade (g/mol) no resultado final. a) NaOH b) HNO2 c) HCN d) H3PO4 e) K2HPO4 f) AgNO3 g) H2SO4 h) LiOH i) Fe(OH)3 j) NaClO k) NH4OH l) NaH2PO4 m) Al2O3 n) Ca3(PO4)2 o) Mg(OH)3 p) HNO3 q) C12H22O11 r) C3H5N3O9 s) HClO4 t) C6H12O6