Now, let's see what this looks like with real chemicals. Carbon dioxide is a common compound that we have surrounding us on a daily basis. What is the percent of carbon and oxygen in carbon dioxide?

You will use the following formula to find the percent of carbon in CO_{2}.

Fraction: grams of carbon over grams of carbon dioxide Grams of carbon Grams of carbon dioxide × 100

The amount of grams of carbon in 1 mole is 12.01 grams and the total amount of grams in 1 mole of carbon dioxide is 44.01 grams. Use these masses in the formula above.

Fraction: 12.01 grams of C over 44.01 grams of CO sub 2
12.01 grams of C
44.01 grams of CO_{2}
× 100

What is the percent of carbon in CO_{2}, round your answer to the nearest hundredth place?

The amount of grams of oxygen in 1 mole of O_{2} is 32.00 grams, and the total amount of grams in 1 mole of carbon dioxide is 44.01 grams. What is the percent of oxygen in CO_{2}, round your answer to the nearest hundredth place?