Now, our initial freezing point is six degrees Celsius. Our final freezing point is 2.7 degrees Celsius. Our constant for freezing is 20 Celsius times kilograms per mole. Now, so we basically start with 100 grams of cyclohexane which freezes at six degrees Celsius. We add 2 grams of unknown compound to our beaker of 100 grams of cyclohexane and that solution freezing point drops to 2.7 degrees Celsius. Now, our goal is to use the freezing point depression formula to find the Molar mass.