Hi. I am trying to solve a couple of chemistry problems relating to using the empirical formula and am struggling with it. Can someone show me how they would do it.
Here they are:
A hydrocarbon mixture consists of 88.89% carbon and 11.11% hydrogen by mass. What is the empirical formula of the hydrocarbon?
If the molecular weight of the hydrocarbon is approximately 54 g/mol, what is the molecular formula?
Thanks!
88.89/12=7.4
11.11/1=11.11
C7.4,H11.11
C1,H1.5
C2,H3
Emp. mass = 27 which is half of mol. mass
C4H6 should be mol. formula.