Question

Calcule as massas moleculares para seguintes substâncias:

a) H2SO4
b) H4P2O7
c) Al2 (SO4)3

Answer 1

a) 1.(2) + 32 + 16.(4) = 98 g/mol

b) 1.(4) + 31.(2) + 16.(7) = 178 g/mol

c) 27.(2) + 32.(3) + 16.(12) = 342 g/mol