CHM 1025C Module Eight Solutions Name: Answers


Part D: Solution Preparation Problems    10 points


1. How many grams of solute are needed to prepare 250 ml of a 0.0100 M KMnO4?

___?___g KMnO4  solute  =  250 mL .0100M KMnO4 solution






2.   20 grams of AgNO3 were placed in a 250 ml volumetric flask, calculate the Molarity of the Solution.




20 g AgNO3 solute

------------------------ =    ____?____M AgNO3 Solution

250 mL solution











Part E: Solution Dilution/Concentration Problems   10 points


1. How many milliliters of a 12.0 M HCl (concentrated ) are required to make 2.00 L of a

1.00 M HCl?



  ___?___mL 12.0M HCl = 2.00 L 1.00M HCl








2. A stock bottle of concentrated nitric acid indicates that the solution is 67.0 HNO3 by mass and has a density of 1.40 g/ml.  Calculate the molarity of concentrated nitric acid.


___?____M HNO3 = 67.0 % HNO3