Friday
February 27, 2015

Homework Help: chem

Posted by jessie on Sunday, September 26, 2010 at 5:39pm.

What is the freezing point (C) of a solution prepared by dissolving 11.3 g of Ca(NO3)2
(formula weight = 164 g/mol) in 115 g of water? The molal freezing point depression constant for
water is 1.86 C/m.

whats wrong with my answer:

molal: 0.069 moles Ca(NO3)2/0.115kg= 0.6
0.6x1.86=1.116
but its wrong, the answer is supposed to be -3.34

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Chemistry - What is the freezing point (C) of a solution prepared by dissolving...
chemistry - Calculate the freezing point of 0.15 m calcium chloride aqueous ...
molal - the freezing point of ethanol (C2H5OH) is -114.6C. the molal freezing ...
molal - the freezing point of ethanol (C2H5OH) is -114.6C. the molal freezing ...
molal - the freezing point of ethanol (C2H5OH) is -114.6C. the molal freezing ...
chemistry - 1. Find the molality of the solution prepared by dissolving 0.238g ...
chemistry - The procedure described in this experiment was used to determine the...
chem - freezing point - When 18 g of ethylene glycol C2H6O2 is dissolved in 150 ...
molal - the freezing point of ethanol (C2H5OH) is -114.6C. the molal freezing ...
molal (again) - i tried to solve it on my own but im confused about the last ...

Members