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18 Nov 2019
The purpose of this lab is to see how the equilibrium constant of a solution always returns equilibrium after adding or removing and acid or base. You will be measuring the pH of a solution to find the equilibrium constant of an acidic solution. You can review the acid base chapter for this calculation. The Dissociation Constant of Acetic Acid a. Take 10.0 ml of 1.0 M acetic acid and measure its pH. b. Repeat part 1 a using 0.10 M acetic acid and measure its pH. c. Add 25.0 mL of 1.0 M sodium acetate to 10.0 ml of 1.0 m acetic acid and mix well. (Save this solution for part d) d. Dilute 10.0 mL of the solution employed in part 1 c with 40.0 ml, od distilled water, mix thoroughly, and measure the pH. e. Thoroughly mix 50. mL of 1.0 M sodium acetate with 30.0 mL of 1.0 M acetic acid Measure the pH. The Dissociation Constant of an Unknown Acid. Measure the pH of 50.0 mL of a 0.10 M solution of an unknown acid. Then add 10.0 mL of 0.10 M NaOH, stir, and measure the pH. Finally, add another 20.0 mL more of 0.10 M NaOH to the solution, stir, measure the
The purpose of this lab is to see how the equilibrium constant of a solution always returns equilibrium after adding or removing and acid or base. You will be measuring the pH of a solution to find the equilibrium constant of an acidic solution. You can review the acid base chapter for this calculation. The Dissociation Constant of Acetic Acid a. Take 10.0 ml of 1.0 M acetic acid and measure its pH. b. Repeat part 1 a using 0.10 M acetic acid and measure its pH. c. Add 25.0 mL of 1.0 M sodium acetate to 10.0 ml of 1.0 m acetic acid and mix well. (Save this solution for part d) d. Dilute 10.0 mL of the solution employed in part 1 c with 40.0 ml, od distilled water, mix thoroughly, and measure the pH. e. Thoroughly mix 50. mL of 1.0 M sodium acetate with 30.0 mL of 1.0 M acetic acid Measure the pH. The Dissociation Constant of an Unknown Acid. Measure the pH of 50.0 mL of a 0.10 M solution of an unknown acid. Then add 10.0 mL of 0.10 M NaOH, stir, and measure the pH. Finally, add another 20.0 mL more of 0.10 M NaOH to the solution, stir, measure the
Irving HeathcoteLv2
6 Nov 2019