Question

20.A hydrocarbon was found to contain 75% by mass of carbon and 25% by mass of hydrogen. What is empirical formula of the compound?
1 point
CH4
C2H4
C2H6
C6H6​

Answer 1

Answer:

CH4

Explanation:

methane molecular weight is 16g

where it contains 12g of carbon and 4g of hydrogen

i.e., 3:1 (ratio)

75:25 can be written as 3:1

so the empirical formula of the compound is CH4