Question

percent composition and molecular formula
quiz complete
1 2 3 4 5 6 7 8 9 10
what is the empirical formula for $c_2h_6$?
ch
$ch_3$
$c_2h_4$
$c_6h_{18}$

Explanation:

The empirical formula is the simplest whole number ratio of atoms in a compound. For C₂H₆, divide the subscripts by their greatest common divisor (2): $\frac{2}{2}=1$ for C, $\frac{6}{2}=3$ for H, resulting in CH₃.

Answer:

B. CH₃