Question

# Is ammonia denser than air? Which property of ammonia is demonstrated by the Fountain experiment? Write the balanced equation for the reaction between ammonia and sulphuric acid.

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Solution

## No, ammonia has a vapour density of 8.5 g/cc, which is less than the vapour density of air, i.e., 14.4 g/cc. The fountain experiment demonstrates the solubility of ammonia in water. $2{\mathrm{NH}}_{3}+{\mathrm{H}}_{2}{\mathrm{SO}}_{4}\to {\left({\mathrm{NH}}_{4}\right)}_{2}{\mathrm{SO}}_{4}$

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