February 26, 2017

Homework Help: chemistry

Posted by hershi on Monday, February 10, 2014 at 11:16pm.

a solution is prepared by mixing 2.17g of an unknown non-electrolyte with 225.0g of chloroform. The freezing point of the resulting solution is -64.2 C . The freezing point of pure chloroform is -63.5 C and its kf= 4.68C m^-1 . What is the molecular mass of the unknown?
i know we must use molality and freezing point depression formula, but i do not know in what order.

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