Wednesday
April 16, 2014

Homework Help: Chemistry

Posted by Jasmine on Thursday, May 23, 2013 at 1:03pm.

40.0 g of magnesium chloride (MgCl2) in 250.0 g of water at 22 C.Calculate a) the vapor pressure of this solution, b) the freezing point, c) the boiling point.

I know it is something like this, but I continue to get the incorrect answer.

A) 40.og Mgcl2*(1mol mgcl2/ 95.2 mgcl2)*(3 mol mgcl2/ 1mol MgCl2)= 1.261
250.o H20*(1mol h20/ 18.02h20)= 13.87
(13.87)/(13.87+1.261)=.9166--> .9166(23.80)= 21.81. That's not the correct answer, though.

C) I get 100.8 for Boiling point
B) and negative one for freezing.

Can someone please tell me how to do this correctly?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Chemistry - A solution of magnesium chloride, MgCl2, is prepared by dissolving ...
Chemistry - You are going to be provided with 1 0.50 g sample of magnesium oxide...
chemistry - What is the molarity of each kind of ion in a solution of magnesium ...
chemistry - You need to make an aqueous solution of 0.121 M magnesium chloride ...
chemistry - 7. Write the balanced equation for the equation for the reaction of ...
Chemistry - What mass (g) of magnesium chloride (MgCl2) must react with sulfuric...
chemistry hw question - Magnesium hydroxide + hydrogen chloride-----> ...
science - What elements does the compound MgCL2, magnesium chloride, contain? A...
chemistry - Magnesium reacts with HCl to produce magnesium chloride and hydrogen...
College Chemistry - If 69.3g of magnesium chloride were produced from a process ...

Search
Members