Answer
$C_{8}H_{18}$
Work Step by Step
Calculate the molar mass of the empirical formula by adding the molar masses of its constituent elements together.
$4(12.01)+9(1.01)= 57.13$
Divide the molar mass given by this number and round to the nearest whole number (it should be really close).
$\frac{114.22}{57.13}=2$
Multiply the Empirical formula by this number to get the molecular formula.
$2(C_{4}H_{9})=C_{8}H_{18}$
