Question

Qual a massa molar do Brometo de Cálcio, CaBr2. Ca = 40 g/mol ; Br = 78 g/mol ?

a) 200 g/mol
b) 156 g/mol
c) 118 g/mol
d) 196 g/mol
e) 159 g/mol​

Answer 1

Resposta:a) 200 g/mol

Explicação:

CaBr2--->40.1+80.2--->40+160--->200 g/mol