Calculate the volume of hydrogen chloride obtained by reacting 4 g of hydrogen with 67.2 liters of chlorine.

1. We write down the equation of the proceeding reaction:

H2 + Cl2 = 2HCl;

2.Calculate the chemical amounts of hydrogen and chlorine and determine which substance is taken in insufficient quantities:

n (H2) = m (H2): M (H2) = 4: 2 = 2 mol;

n (Cl2) = V (Cl2): Vm = 67.2: 22.4 = 3 mol;

3.Lack of hydrogen, find the amount of HCl:

n (HCl) = n (H2) * 2 = 2 * 2 = 4 mol;

4.calculate the volume of hydrogen chloride:

V (HCl) = n (HCl) * Vm = 4 * 22.4 = 89.6 liters.

Answer: 89.6 liters.