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Concentration of Solution

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  1. Concentration of Solution • Concentration refers to the amount of solute dissolved in a solution.

  2. MOLARITY

  3. MOLARITY BY DILUTION • When you dilute a solution, you can use this equation:

  4. Example: Describe how you would prepare 2.50 L of 0.665 M Na2SO4 solution starting with:a) solid Na2SO4b) 5.00 M Na2SO4 Dissolve 236 g of Na2SO4 in enough water to create 2.50 L of solution.

  5. Example: Describe how you would prepare 2.50 L of 0.665 M Na2SO4 solution starting with:a) solid Na2SO4b) 5.00 M Na2SO4 Add 333 mL of Na2SO4 and dilute with water until you have 2.50 L of solution.

  6. MASS PERCENT

  7. MASS PERCENT • Example: What is the percent of NaCl in a solution made by dissolving 24 g of NaCl in 152 g of water?

  8. MOLALITY

  9. MOLALITY • Example: What is the molality of a solution that contains 12.8 g of C6H12O6 in 187.5 g water?

  10. MOLALITY • Example: How many grams of H2O must be used to dissolve 50.0 g of sucrose to prepare a 1.25 m solution of sucrose, C12H22O11?

  11. NORMALITY • Example: Find the normality of a 3.0 M solution of H2SO4?