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Question
66g of ammonium sulphate is produced by the action of ammonia on sulphuric acid. Write a balanced equation and calculate the mass of acid required.
Solution
\[\ce{2NH3 + H2SO4 -> [NH4]2SO4}\]
Mass of acid required for 132 g (NH4)2SO4 = 98 g
∴ Mass of acid required for 66 g (NH4)2SO4
= `(98 xx 66)/132`
= 49 g
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