# Determine the mass of nitric acid that can be obtained from 11.2 liters of ammonia.

July 28, 2021 | education

| To solve the problem, make up the equation:

V = 11.2 liters. X g -?

1. NH3 + 2O2 = HNO3 + H2O – OBP, nitric acid was obtained;

2. Calculations:

M (HNO3) = 63 g / mol;

M (NH3) = 17 g / mol.

3. Proportion:

1 mole of gas at normal level – 22.4 liters;

X mol (NH3) -11.2 l. hence, X mol (NH3) = 1 * 11.2 / 22.4 = 0.5 mol;

Y (HNO3) = 0.5 mol since the amount of these substances according to the equation is 1 mol.

4. Find the mass of the product:

m (HNO3) = Y * M = 0.5 * 63 = 31.5 g.

Answer: nitric acid with a mass of 31.5 g was formed.

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