Here is the answer for the question – **Suppose that you add 22.6 g of an unknown molecular compound to 0.250 kg of benzene, which has a**. You’ll find the correct answer below

### Suppose that you add 22.6 g of an unknown molecular compound to 0.250 kg of benzene, which has a

Kf of 5.12oC/m. With the added solute, you find that there is a freezing point depression of 3.30oC compared to pure benzene.

What is the molar mass (in g/mol) of the unknown compound?

**The Correct Answer is**

**140.37m=Î”Tf/iKf=3.30âˆ˜C/(1)(5.12âˆ˜C)divide the mass of the sample by the moles to find the molar mass.**

### Reason Explained

140.37m=Î”Tf/iKf=3.30âˆ˜C/(1)(5.12âˆ˜C)divide the mass of the sample by the moles to find the molar mass. is correct for Suppose that you add 22.6 g of an unknown molecular compound to 0.250 kg of benzene, which has a