Molarity/Solution Concentration Practice

Name ______Date ______Period ______Molarity/Solution Concentration Practice Molarity M = mole solute/liter solution Given a 2 M solution, this means you have ______Given a 4.5 M solution, you have ______Determine the molarity of the following solutions What is the molarity of a solution in which 2 moles of sodium chloride in 4 liters

What is the molarity of a solution in which 0.5 moles of sodium chloride in 200 ml

What is the molarity of a solution in which 98 g of sulfuric acid in 0.50 L of solution

What is the molarity of a solution in which 32.7 g of phosphoric acid (H3PO4) in 250 ml of solution

1. To what volume should 5.0 g of KCl be diluted in order to prepare a 0.25 M solution?

2. How many grams of CuSO4 · 5H2O are needed to prepare 100 ml of a 0.10 M solution?

Draw your “T” chart. Know that Molar = moles/1 liter You have 0.5 liters of a 2 M NaCl solution. How many moles of NaCl do you have? ______

You have 2 liters of a 0.5 M NaCl solution. How many grams of NaCl do you have? ______

You have 250 ml of a 1 M NaCl solution. How many grams of NaCl do you have? ______

You want to make up 100 ml of a 0.5 M solution of NaCl. How many moles do you need? Then, how many grams of NaCl is that? Moles ______Grams ______

You want to make up 25 ml of a 0.4 M solution of NaCl. How many moles do you need? Grams?

Moles ______Grams _____

You have 20 g of NaCl and you want to make up a 0.45 M solution. What will be the volume? Volume ______Molarity by Dilution M1V1 = M2V2

1. How much concentrated 12 M hydrochloric acid is needed to prepare 100 ml of a 2.0 M solution?

2. To what volume should 25 ml of 15 M nitric acid be diluted to prepare a 3.0 M solution?

3. To how much water should 50. ml of 12 M hydrochloric acid be added to produce a 4.0 M solution?

4. To how much water should 100. ml of 18 M sulfuric acid be added to prepare a 1.5 M solution?

Molality m = mole solute/ kg solvent

5. What is the molality of a solution in which 3.0 moles of NaCl is dissolved in 1.5 Kg of water?

6. What is the molality of a solution in which 25 g of NaCl is dissolved in 2.0 Kg of water?

7. What is the molality of a solution in which 15 g of I2 is dissolved in 500. g of ethanol?

8. How many grams of I2 should be added to 750 g of CCl4 to prepare a 0.020 m solution?

9. How much water should be added to 5.00 g of KCl to prepare a 0.500 m solution?

Normality N = M(# of H+ or OH-) or the number of equivalents solute/L solution

10. a. What is the normality of a 2.0 M NaOH solution? b. What is the normality of a 2.0 M H3PO4 solution?

11. A solution of H2SO4 is 3.0 N. What is the molarity?

12. What is the normality f a solution in which 2.0 g of Ca(OH)2 is dissolved in 1.0 L of solution?

13. How much Al(OH)3 should be dissolved in 2.00 L of solution to produce a 0.150 N solution?