Answer:
CH4 (Methane)
Explanation:
The compound is found to be composed of 75% carbon and 25% hydrogen.
100 g of the compound contains 75 g of carbon and 25 g of hydrogen.
The atomic masses of carbon and hydrogen are 12 g/mol and 1 g/mol respectively.
The number of moles of C = 12 g/mol /75 g = 6.25 moles
The number of moles of H = 1 g/mol / 25 g = 25 moles
The mole ratio C:H=6.25:25=1:4
The empirical formula of the compound is CH 4
