Homework Help: chemistry

Posted by Anonymous on Wednesday, February 16, 2011 at 12:16am.

A solution that contains 0.500 g phenol in 12.0 g cyclohexane freezes at –2.44°C and boils at 81.94°C. Calculate the freezing‐point depression and boiling‐point elevation constants for cyclohexane.

chemistry - DrBob222, Wednesday, February 16, 2011 at 2:46pm
Some of your "characters" aren't readable. Here is what you do.
moles phenol = g/molar mass
Solve for moles.

molality = moles phenol/kg solvent
Solve for molality

delta T = Kf*m
Solve for Kf

delta T = Kb*m
Solve for Kb.
chemistry - jarren, Tuesday, February 28, 2012 at 6:21am
3.6

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