Sunday
April 19, 2015

Homework Help: chemistry... please help!

Posted by Anonymous on Friday, February 13, 2009 at 1:54pm.

Pure glacial acetic acid HC2H3O2 has a freezing point of 16.62 degrees C. Its freezing point depression constant is Kf=3.57 Cm^-1. A solution was made by taking 9.755 g of an unknown non-electrolyte and dissolving it in 90.50 g of glacial acetic acid. The measured freezing point of the solution was 8.64 degrees C. Find the molecular weight of the unknown substance.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

chemistry - 1. Find the molality of the solution prepared by dissolving 0.238g ...
chem - A solution prepared by dissolving 3.00 grams of ascorbic acid (vitamin C...
chemistry - A freezing point depression experiment was conducted using ...
chemistry - The procedure described in this experiment was used to determine the...
chemistry - a solution is prepared by mixing 2.17g of an unknown non-electrolyte...
Chemistry - If the freezing point of pure toluene is -95.15 oC and its freezing ...
CHEMISTRY- PLEASE HELP:)! - Pure lauric acid is melted and the freezing point is...
I am so lost - The freezing point of pure cyclohexane is 6.60C and the freezing...
I am so lost - The freezing point of pure cyclohexane is 6.60C and the freezing...
chem - freezing point - When 18 g of ethylene glycol C2H6O2 is dissolved in 150 ...

Members