Calculate the formula unit mass of `CaCl_(2)`.

(a) Calculate the formula unit mass of Na_(2)SO_(4) (b) What is the mass of one mole of sulphur atoms? (c) Convert 12 g of oxygen into mole.

Calculate the formula mass of CHCl3

Calculate the formula mass of CH3COONa

Calculate the formula mass of KHCO3.

Calculate formula unit mass of CuSO_(4)

Calculate formula unit mass of Na_(2)CO_(3).10H_(2)O

Calculate the formula mass of CuSO4.5H2O