Question

Calculate the molecular mass of the following compounds CaCO3, Na2CO3 , MgSO4.

Answer 1

Answer:

The molecular weight of calcium carbonate CaCO3 is: =1×40+1×12+3×16

=40+12+48

=100 g/mol

The molecular weight of Na2CO3 is

= 2(23)+12+3(16)

= 106 g/mol.

The molecular weight of MgSO4 is

= 24+32-4(16)

=120 g/mol.