A compound composed of only carbon and hydrogen is 25.2% hydrogen by mass.The empirical formula for this compound is:

Question

Quizplus · Accepted Answer

The compound is 25.2% hydrogen, meaning it is 74.8% carbon. Assuming 100 g of the compound, there are 25.2 g of H and 74.8 g of C. The molar mass of H is 1 g/mol and C is 12 g/mol. Thus, moles of H = 25.2 and moles of C = 6.23. The ratio of C:H is approximately 1:4, giving the empirical formula CH₄.

A Compound Composed of Only Carbon and Hydrogen Is 25