Question

Exercício
1- calcule as massas moleculares das
seguintes substâncias:
a) C2H6
b) SO2
c) CaCO3
d) NaHSO4
e) CH3COONa
f) (NH4)3PO4​

Answer 1

Resposta:

A)C2H6: (2x12g + 6x1g) = 30g/mol

B)SO2:(1x32g+ 2x16g) = 64g/mol

C)CaCO3: (1x40g+ 1x12g+ 3x16g) = 100g/mol

D)NaHSO4: (1x23g + 1x1g + 1x32g + 4x16g) = 120g/mol

E)CH3COONa: (1x12g + 3x1g + 1x12g + 1x16g + 1x16g+ 1x23g ) = 82g/mol

F)(NH4)3PO4: (3x14g+ 12x1g + 1x31g + 4x16g) = 149g/mol