When 37 g of calcium hydroxide was reacted with ammonium sulfate, 15 g of ammonia

When 37 g of calcium hydroxide was reacted with ammonium sulfate, 15 g of ammonia was obtained. Calculate the mass fraction of the ammonia yield.

This reaction proceeds according to the following chemical reaction equation:

(NH4) 2SO4 + Ca (OH) 2 = 2NH3 + CaSO4 + 2H2O;

Let’s calculate the chemical amount of calcium hydroxide. To do this, we divide its weight by its molar mass.

M Ca (OH) 2 = 40 + 17 x 2 = 74 grams / mol;

N Ca (OH) 2 = 15/74 = 0.203 mol;

During the reaction, 0.203 x 2 = 0.4054 mol of ammonia will be released.

Let’s find its volume.

To this end, we multiply the amount of substance by the standard volume of 1 mole of gas (which is 22.40 liters)

V NH3 = 0.4054 x 22.4 = 9.081 liters;