9.3 Exercise 20

The chlorofluorocarbon CCl₂F₂ can be recycled into a different compound by reaction with hydrogen to produce CH₂F₂(g), a compound useful in chemical manufacturing:
$\text{CCl}_{2} \text{F}_{2} \left(g\right) + 4 \text{H}_{2} \left(g\right) \rightarrow \text{CH}_{2} \text{F}_{2} \left(g\right) + 2 \text{HCl} \left(g\right)$

(a) Outline the steps necessary to answer the following question: What volume of hydrogen at 225 atm and 35.5 °C would be required to react with 1 ton (1.000 $\times$ 10³ kg) of CCl₂F₂?

(b) Answer the question.