Answer:
C2H3
Step-by-step explanation:
The empirical formula is the simplest whole number ratio of atoms of each element in a compound while the molecular formula shows us the actual number of atoms of each element
Writing C8H12 in a ratio:
8 : 12
This can be simplified by dividing by a common factor present in both numbers
8 and 12 can be divided by 4
8 ÷ 4 = 2 and 12 ÷ 4 = 3, hence the ratio is:
2 : 3
This cannot be simplified any further
Thus, the empirical formula is C2H3