Question

Quantos mols de água existem em 36g de água? (Dados: MM H2O = 18g/mol) *
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Answer 1

Resposta:

Massa molar H2O = 1 x 2 + 16 = 18 g/mol

Massa molar H2O = 1 x 2 + 16 = 18 g/mol1 mol H2O ----------------- 18 g

Massa molar H2O = 1 x 2 + 16 = 18 g/mol1 mol H2O ----------------- 18 gx mol H2O ----------------- 36 g

Massa molar H2O = 1 x 2 + 16 = 18 g/mol1 mol H2O ----------------- 18 gx mol H2O ----------------- 36 gx = 36 / 18

Massa molar H2O = 1 x 2 + 16 = 18 g/mol1 mol H2O ----------------- 18 gx mol H2O ----------------- 36 gx = 36 / 18x = 2,0 mols de moléculas