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