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Section 15.2 Solution Concentration

Section 15.2 Solution Concentration. Concentration Measure of how much solute is dissolved in a specific amount of solvent. Percent by mass & Percent by volume. Percent Concentration by Volume Practice I.

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Section 15.2 Solution Concentration

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  1. Section 15.2Solution Concentration • Concentration • Measure of how much solute is dissolved in a specific amount of solvent

  2. Percent by mass &Percent by volume

  3. Percent Concentration by Volume Practice I 1. What is the percent by volume of ethanol in a solution that contains 35 mL of ethanol dissolved in 115 mL of water?

  4. 2. If you have 100 mL of a 30% aqueous solution of ethanol, what volume of ethanol and water are in the solution?

  5. 3. What is the percent by volume of isopropyl alcohol in a solution that contains 24 mL isopropyl alcohol in 1100 mL of water?

  6. 4. What is the percent by volume of 140 mL of isopropyl alcohol dissolved in 60 mL of water? • 30% • 42.86% • 70% • 233%

  7. 5. A bottle of hydrogen peroxide is labeled 3%. If you pour out 50 mL, what volume of hydrogen peroxide have you poured out? • 1.5 mL • 6 mL • 5.66 mL • 1667 mL

  8. 6. If 50 mL of pure acetone is mixed with 450 mL of water, what is the percent by volume? • 11% • 0.10% • 90% • 10%

  9. 7. If you have 500 mL of a 10% solution of tetracycline, what is the volume of tetracycline and water? • 5000 mL • 500 mL • 50 mL • 2 mL

  10. 8. If you pour out 60 mL of a 30% alcohol solution, how much pure alcohol have you poured? • 200 mL • 18 mL • 50 mL • 33 mL

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