3.0 g of a sample of impure ammonium chloride were boiled with excess of caustic soda solution. Ammonia gas so evolved was passed into 120 mL of N/2 H_(2)SO_(4)mL of N/2 NaOH were required to neutralise excess of the acid. Calculate the percent purity of the given sample of ammonium chloride.

3.0 g of a sample of impure ammonium chloride were boiled with excess

1.	3.0 g of a sample of impure ammonium chloride were boiled with excess of caustic soda solution. Ammonia gas so evolved was passed into 120 mL of N/2 H_(2)SO_(4)mL of N/2 NaOH were required to neutralise excess of the acid. Calculate the percent purity of the given sample of ammonium chloride.
Answer» ANSWER :`82 %`