Normality takes into account the number of equivalent weights of the solute per liter. An equivalent weight is like dividing the molar mass by the number of reactive units in the molecule. So, for sulfuric acid, its normality would be twice its molarity, because it has two reactive hydrogens...
A 0.4671 g sample containing sodium bicarbonate was titrated with HCl requiring 40.72 mL. The acid was standardized by titrating 0.1876 g of sodium carbonate (FW = 106 mg/mmol) requiring 37.86 mL of the acid. Find the percentage of NaHCO3 (FW=84.0 mg/mmol) in the sample. ...