Friday
August 1, 2014

Homework Help: Chemistry

Posted by Tracy on Monday, January 10, 2011 at 7:56am.

Analysis of a compound indicates that it is 49.02% carbon, 2.743% hydrogen, and 48.23% chlorine by mass. A solution is prepared by dissolving 3.150 grams of the compound in 25.00 grams of benzene, C6H6. Benzene has a normal freezing point of 5.50degreeC and the solution freezes at 1.12degreeC. The molal freezing point constant,kf, for benzene is 5.12C/molal.
1.Find the empirical formula of this compound.
2.Using the freezing point data calculate the molar mass of the compound.
3. Calculate the mole fraction of benzene in the solution.
4. The vapor pressure of benzene at 35degreeC is 150.0mmHg. Calculate the vapor pressure of benzene over the solution described in this problem at 35degreeC.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Chemistry - Analysis of a compound indicates that it is 49.02% carbon, 2.743% ...
Chemistry - Analysis of a compound indicates that it is 49.02% carbon, 2.743% ...
chemistry - Analysis of a compound gave 39.50% C, 2.20% H, and 58.30% Cl. When ...
chemistry - a compound contains only carbon hydrogen and oxygen analysis of a ...
chemistry - A solution is prepared with an unknown compound with an empirical ...
chemistry - A 25g sample of a compound composed of Carbon, Hydrogen, and Oxygen ...
Chemistry - Please check my answers for the following questions. THANK YOU. 1) ...
chemistry - 2.4g of a compound of carbon, hydrogen and oxygen gave on combustion...
chemistry - 2.4g of a compound of carbon, hydrogen and oxygen gave on combustion...
Chemistry - An unknown compound contains carbon, hydrogen, and oxygen. When ...

Search
Members