Answer
$C_{12}H_{14}N_{2}$
Work Step by Step
Calculate the molar mass of the empirical formula by adding the molar masses of its constituent elements together.
$6(12.01)+7(1.01)+1(14.0)=93.13$
Divide the molar mass given by this number.
$\frac{186.24}{93.13}=2$
Multiply the empirical formula by this number to get the molecular formula.
$2(C_{6}H_{7}N)=C_{12}H_{14}N_{2}$
