If a sample of a compound of carbon and oxygen contains 3.00g of carbon and 8.00g of oxygen, what is the mass percent of carbon in the compound?
A. 27.3%
B. 25.0%
C. 37.5%
D. 3.67%
E. 2.67%
%anything =(mass component/total mass)*100 = ??
37.5 right
To find the mass percent of carbon in the compound, you need to calculate the ratio of the mass of carbon to the total mass of the compound, and then multiply by 100%.
1. Find the total mass of the compound by adding the mass of carbon and the mass of oxygen: 3.00g + 8.00g = 11.00g.
2. Calculate the mass percent of carbon by dividing the mass of carbon by the total mass of the compound and multiplying by 100%: (3.00g / 11.00g) * 100% = 27.3%.
Therefore, the mass percent of carbon in the compound is 27.3%. Therefore, the correct answer is (A) 27.3%.