# Calculate the volumes of nitric oxide (IV) and oxygen that will be required to obtain 1 mol of nitric acid.

July 29, 2021 | education

| Given:

n (HNO3) = 1 mol

To find:

V (NO2) -?

V (O2) -?

1) Write the reaction equation:

4NO2 + O2 + 2H2O => 4HNO3;

2) Determine the amount of the substance NO2 (taking into account the coefficients in the reaction equation):

n (NO2) = n (HNO3) = 1 mol;

3) Calculate the volume of NO2:

V (NO2) = n (NO2) * Vm = 1 * 22.4 = 22.4 L;

4) Determine the amount of substance O2 (taking into account the coefficients in the reaction equation):

n (O2) = n (HNO3) / 4 = 1/4 = 0.25 mol;

5) Calculate the volume of O2:

V (O2) = n (O2) * Vm = 0.25 * 22.4 = 5.6 liters.

Answer: The volume of NO2 is 22.4 liters; O2 – 5.6 L

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