Thursday
August 21, 2014

Homework Help: chemistry

Posted by aa on Saturday, July 14, 2012 at 10:14am.

A solution is prepared by dissolving 20.2 {\rm mL} of methanol ({\rm{CH}}_3 {\rm{OH}}) in 100.0 {\rm mL} of water at 25 ^\circ {\rm C}. The final volume of the solution is 118 {\rm mL}. The densities of methanol and water at this temperature are 0.782 {\rm g/mL} and 1.00 {\rm g/mL}, respectively. For this solution, calculate each of the following.
find 1 ) molality
2) percent by mass
3) moles fraction
4 )mole fraction
5) molarity

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Chem3 - A solution is prepared by dissolving 22.8 mL of methanol (d = 0.782 g/mL...
chemistry - A standard solution is prepared for the analysis of fluoxymesterone...
chemistry! URGENT - A standard solution is prepared for the analysis of ...
chem - A standard solution is prepared for the analysis of fluoxymesterone (...
chemistry - A solution is prepared by dissolving 0.5842g of oxalic acid (H2C2O4...
Chemistry - Calculate the molality of methanol in a solution prepared by ...
Chemistry - The molarity and the molality of a solution prepared by dissolving 2...
biochemistry - A solution was prepared by dissolving 8.0g of solid ammonium ...
Chemistry - A buffer solution is prepared by dissolving 0.400 mol of CH3COOH and...
Chemistry - A buffer solution is prepared by dissolving 0.400 mol of CH3COOH and...

Search
Members