Calculate the extent of reaction and using that value

Question

Chemical Engineering

1. Phosgene gas is widely used in chemical processing for a variety of materials. Phosgene can be made by the catalytic reaction between CO and chlorine gas in the presence of a carbon catalyst. The chemical reaction is

CO+Cl₂ → COCl₂

Suppose that you have measured the reaction products from a given reactor and found that they contained 3.00 moles of chlorine, 10.00 moles of phosgene, and 7.00 mols of CO. Calculate the extent of reaction, and using that value, determine the initial amounts of CO and Cl₂ that were used in the reaction.