Monday
April 27, 2015

Homework Help: Chemistry

Posted by Shell on Thursday, May 19, 2011 at 12:32am.

Preparing solutions
a. A solution was prepared by dissolving 5.65 g potassium bromide in 32.67 g water. What is the concentration of this solution in weight percent?
b. The solution was poured into a 100 mL volumetric flask and water was added to the mark on the flask. What is the concentration of the solution in moles per liter?
c. Using a pipet, 10 mL of the solution in part b was placed in a 25 mL volumetric flask and the flask filled to the mark with water. What is the concentration of the new solution?

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