Senior Four Chemistry Holiday Work: Nitrogen, Sulphur Compounds, Acids and Salts

This Senior Four chemistry holiday assignment contains structured questions with marks shown for each part. It covers the laboratory preparation, drying, collection and properties of ammonia, and the conversion of ammonia to nitric acid. Other questions deal with the thermal decomposition of copper(II) nitrate and the reactions of its residue, and with the preparation, testing and reactions of sulphur dioxide. Learners also answer questions on the Contact process and the properties of sulphuric acid, air pollution and acid rain, acids, bases and salts, and tests for sulphate ions. The last section looks at hygroscopic substances and calcium oxide. The paper includes several mole and percentage calculations.