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