Calculate the molecular mass of the following a) H2SO4 b) Na2SO3 c) Fe(SO4)3 d) Cs(CO3) e) (NH3)4PO4 f) Mg(HCO3)2

Answer 1

a) H2SO4:
Molecular mass = (2*1.008) + (32.06) + (4*16.00) = 98.08 g/mol

b) Na2SO3:
Molecular mass = (2*22.99) + (32.06) + (3*16.00) = 126.04 g/mol

c) Fe(SO4)3:
Molecular mass = (1*55.85) + (3*(32.06)) + (12*(16.00)) = 399.88 g/mol

d) Cs(CO3):
Molecular mass = (1*132.91) + (1*(12.01)) + (3*(16.00)) = 168.01 g/mol

e) (NH3)4PO4:
Molecular mass = (4*(1.008)) + (1*(14.01)) + (1*(30.97)) + (4*(16.00)) + (3*(16.00)) = 149.04 g/mol

f) Mg(HCO3)2:
Molecular mass = (1*(24.31)) + (2*(1.01)) + (2*(12.01)) + (6*(16.00)) + (4*(16.00)) = 146.40 g/mol