Question

What mass of CO was used up in the reaction with an excess of oxygen gas if 24.7g of carbon dioxide is formed?

Answer 1

Hello!

The mass of CO that was used up in the reaction with an excess of oxygen gas if 24,7 g of Carbon Dioxide is formed was 15,72 g

The chemical equation for the reaction in this exercise is the following one:

2 CO + O₂ → 2CO₂

Now, we will apply the following conversion factor to go from grams of Carbon Dioxide to grams of Carbon monoxide using the molar masses, and reaction coefficients:


`24,7 g CO_2* (1 mol CO_2)/(44,01 g CO_2) * (2 moles CO)/(2 moles CO_2)* (28,01 g CO)/(1 mol CO)=15,72 g CO`

Have a nice day!