How many grams of carbon are present in 26.2 grams of H₂CO₃?

Question

Quizplus · Accepted Answer

The molecular formula given is C13H18O2. To find the mass of carbon, multiply the number of carbon atoms (13) by the atomic mass of carbon (12.01 g/mol). This gives 156.13 g/mol of carbon in the compound. The molar mass of C13H18O2 is approximately 206.28 g/mol. The fraction of the compound's mass that is carbon is 156.13/206.28. To find the mass of carbon in 26.2 g of the compound, multiply this fraction by 26.2 g, resulting in approximately 5.07 g of carbon.

How Many Grams of Carbon Are Present in 26