A-LevelChemistryAtoms, molecules and stoichiometry9701/12 · Oct/Nov 2015 · Q191 Mark
Use of the Data Booklet is relevant to this question. 4.70 g of an ammonium salt is heated with excess aqueous sodium hydroxide. The volume of ammonia gas given off, measured at room temperature and pressure, is 1.41 dm³. Which ammonium salt was used?
Aammonium bromide (Mr = 97.9)
Bammonium carbonate (Mr = 96)
Cammonium nitrate (Mr = 80)
Dammonium sulfate (Mr = 132.1)
✓ Correct answer
C: ammonium nitrate (Mr = 80)
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