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). 28 mL of N//2 NaOH were required to neutralise residual acid. Calculate the percentage of 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). 28 mL of N//2 NaOH were required to neutralise residual acid. Calculate the percentage of purity of the given sample of ammonium chloride.
Answer» <html><body><p><br/></p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :`(120-28) mL N//<a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a> H_(2)SO_(4)-=92 mL N//2 NH_(4)<a href="https://interviewquestions.tuteehub.com/tag/cl-408888" style="font-weight:bold;" target="_blank" title="Click to know more about CL">CL</a>`</body></html>