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University of Adelaide Hypochlorous Acid and Monoprotic Acid Problems Paper

Jun 7, 2022 | OTHER, UNIVERSITY OF ADELAIDE

Jun 7, 2022 | OTHER, UNIVERSITY OF ADELAIDE

University of Adelaide Hypochlorous Acid and Monoprotic Acid Problems Paper

University of Adelaide Hypochlorous Acid and Monoprotic Acid Problems Paper

Summative assignment questions
The molarity of an aqueous solution of Ba(OH)2 is 0.0024 M.
(a) What is the concentration of H3O+ in this solution?
(b) What is the pH of the solution?
(c) What is the OH- concentration in the solution?
Carbonic acid, H2CO3 is a weak acid. Its first Ka is 4.5 x 10-7. Calculate the Kb of its conjugate base.
A 0.115 M aqueous solution of an organicmonoprotic acid HX has a pH of 3.42. Calculate Ka for HX.
(Type the exponent part of your answer in the second box. For example, for2.0 x 10-5, you would type 2.0 in the first box and -5 into the second box.)

Hypochlorous acid, HOCl, is a weakermonoprotic acid than acetic acid. In a 0.11 M solution, the pH is 4.24.
Calculate the Ka for hypochlorous acid.
Calculate the pKa for hypochlorous acid.
If 25 mL of 0.45 M HCl is added to 30 mL of0.35 M NaOH, what is the pH of the final solution?
Calculate the pH of a buffer solutioncontaining 0.125 M potassium acetate and 0.100 M acetic acid. (pKa, CH3COOH = 4.74)
If 0.050 mol of HCl is added to 1.0 L of abuffer solution containing 0.125 M potassium acetate and 0.10 M acetic acid,what is the change in pH of the solution?

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