The empirical formula for a compound comprised of 93.71% Cand 6.39% H contains carbon atom(s) and
hydrogen atom(s).

Explanation:
93.71/12(mr of carbon) : 6.39/1(mr of hydrogen)
7.81 : 6.39
Divide both by the lowest value
7.81/6.39 : 6.39/6.39
1.22 : 1
1:1
1 carbon and 1 hydrogen