Question

One mole of an unknown sample contains 120 g of carbon and 30.3 g of hydrogen. What is the empirical formula of the compound?

Answer 1

List out the elements present in the compound, that is, Carbon and Hydrogen.
Carbon (C) Hydrogen (H)
divide by 120/12 = 30.3 /1 =
the RAM 10 30.3

divide by 10/10 30.3/10 =
smallest 1 3.03
answer

do the ratio 1 : 3 (approximately)

Empirical formula = CH3