Question

Calcule as massas molares das substâncias:

a) HCI
b) NH3
c)Fe
d)O2
e)H2

Answer 1

a) 36,46094 g/mol
b) 17,031 g/mol
c) 55,8 g/mol
d) 15,99 g/mol
e) 1 g/mol

Answer 2

a) massa atômica do H + massa atômica do Cl =
    1 g/mol  +  35 g/mol =
     36 g/mol -------- e assim por diante 

b) 15 + 3.1 = 18 g/mol

c) 56 g/mol

d) 2.16g/mol = 32 g/mol 

e) 2.1 g/mol = 2 g/mol