husseinqardan
contestada

A hydrocarbon contains 92.24 % carbon by mass and has a molar
mass of 78.12 g mol-1.

Determine the empirical formula and molecular
formula of the hydrocarbon​

Respuesta :

unknown767

Explanation:

so for this one you know 92.24 is the mass of C so to work out the mass of hydrogen u so 100-92.24=7.76

so

C : H

92.24/12 : 7.76 /1

7.68 : 7.76

so 7.76÷7.68=1.01

so CH

12+1=13

78.12÷13=6.009

so CH×6= C6H6

hope this helps:)