Suppose that you add

25.9g

of an unknown molecular compound to

0.250kg

of benzene, which has a

K_(f)

of

5.12\\\\deg (C)/(m)

. With the added solute, you fin that there is a freezing point depression of

3.35\\\\deg C

compared to pure benzene.\ What is the molar mass (in

(g)/(m)ol

) of the unknown compound?