Calculate the mass of ammonium hydroxide (NH4OH) required to obtain 89.6L of ammonia

Let’s calculate the chemical amount of ammonia. For this purpose, we divide its volume by the standard volume of 1 mole of gas (filling 22.40 liters)

N NH3 = 89.6 / 22.4 = 4 mol;

Calculate the weight of 4 mol of ammonium hydroxide.

To do this, we multiply the chemical (molar) amount of a substance by its molar (atomic) mass.

M NH4OH = 14 + 4 + 16 + 1 = 35 grams / mol;

The weight of ammonium hydroxide will be:

m NH4OH = 35 x 4 = 140 grams;