$14\mathrm{.}4g$ of an unknown compound $($non$-$dissociating$)$ was dissolved in $140\mathrm{.}0$

$g$ of ethylene glycol.

See table below for required data to solve the problems.

Freezing Point Depression and Boiling Point Elevation Constants

for Several Liquid Solvents

Part A

The solution described was found to have a freezing point of $-16\mathrm{.}60C.$ Determine the molar mass

of the unknown compound.

$62\mathrm{.}1gmo{l}^{-1}$

$8170gmo{l}^{-1}$

$86\mathrm{.}5gmo{l}^{-1}$

$8\mathrm{.}17gmo{l}^{-1}$

$8\mathrm{.}65{10}^{-2}gmo{l}^{-1}$