What volume of ammonia can be obtained by heating a mixture of 33 g of ammonium sulfate with an excess

univerkov | July 16, 2021 | education

What volume of ammonia can be obtained by heating a mixture of 33 g of ammonium sulfate with an excess of calcium hydroxide if the volume fraction of the yield is 85%?

We draw up a chemical equation, not forgetting to put down the coefficients: (NH4) 2SO4 + Ca (OH) 2 = CaSO4 + 2NH3 + 2H2O.
Find the amount of the substance (NH4) 2SO4: n ((NH4) 2SO4) = 33g / 132 g / mol = 0.25 mol.
Find the amount of NH3: 0.5 mol * 85% = 0.425 mol.
Find the volume of NH3: V (NH3) = 0.425 mol * 22.4 l / mol = 9.52 l.
Answer: V (NH3) = 9.52l.

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