Ask Question
25 May, 20:16

The composition of a compound is 20.01% carbon and 79.99% oxygen by mass. what is its empirical formula?

+3
Answers (1)
  1. 26 May, 00:13
    0
    Assume there are 100g of the compound.

    Mass of carbon:20.01g

    Mass of oxygen:79.99g

    Number of mole of carbon:20.01/12=1.6675mol

    Number of mole of oxygen:79.99/32=2.4996875mol

    Mole ratio between carbon and oxygen:

    1.6675/1.6675:2.4996875/1.6675

    =1:1.499062969

    1x2:1.499062969x2

    =2:2.998125937

    ≈2:3

    Hence, the empirical formula:

    C2O3
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “The composition of a compound is 20.01% carbon and 79.99% oxygen by mass. what is its empirical formula? ...” in 📘 Chemistry if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers