When chlorine interacts with hydrogen, 0.25 mol of hydrogen chloride was formed. Calculate the amount of chlorine reacted.

We calculate the volume of chlorine that has reacted as follows. First, we write the reaction equation:
H2 + Cl2 = 2 HCl
Next, we find the volume of hydrochloric acid, we know that the amount of the substance is 0.25 mol. Knowing the following formula:
n = V / Vm
We express V, the volume is V = n × Vm
V = 0.25 mol × 22.4 L / mol = 5.6 L
Now, through the proportion, we find the volume of chlorine
x / 22.4 = 5.6 / 2 × 22.4
Next, to find x, we multiply 22.4 by 5.6 and divide by 2 multiplied by 22.4, the result is the following:
x = 22.4 × 5.6 ÷ (2 × 22.4) = 125.44 ÷ 44.8 = 2.8 l
Answer: the volume of chlorine is 2.8 liters.