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The freezing point depression constant tells how the temperature changes for a 1 molal concentration of...

The freezing point depression constant tells how the temperature changes for a 1 molal concentration of solute. If camphor is dissolved in cyclohexane so that the concentration is 1.5 molal, what is the freezing point of the solution? (See Table in lab procedure for Kf values.)

What are the five major steps in this experiment? a.

b. c. d. e.

An important hazard of cyclohexane is __________________________________. How will you know if the solute is completely dissolved?

Howdoyoucleanupthetesttubeattheendoftheexperiment?

4. 5.

6.

7.
(a) If a solution of 0.5 grams of unknown and 20.0 grams of benzene freezes at 2.0°C,

Freezing point depression data allow us to determine how many moles of particles are dissolved in solution.

what is the molality (mol/kg) of the solution? _________
(b) How many moles of unknown were dissolved in the 20.0 grams of solvent? ______

(c) What is the molar mass of the unknown?

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