A solution is prepared by mixing 33.32 g NaCN (49.007 g/mol) and 23.45 g HCN (27.025 g/mol; Ka = 6.2 x 10-10) in water up to a volume of 600.0 mL. a. What is the pH of the mixture? b. What is the pH after the addition of 50.00 mL of 3.00 M HCI? (Note: All volumes are additive.) c. What is the pH after a further addition of 80.00 mL of 4.00 M NaOH?
A solution is prepared by mixing 33.32 g NaCN (49.007 g/mol) and 23.45 g HCN (27.025 g/mol; Ka = 6.2 x 10-10) in water up to a volume of 600.0 mL. a. What is the pH of the mixture? b. What is the pH after the addition of 50.00 mL of 3.00 M HCI? (Note: All volumes are additive.) c. What is the pH after a further addition of 80.00 mL of 4.00 M NaOH?
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter14: Equilibria In Acid-base Solutions
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Transcribed Image Text:A solution is prepared by mixing 33.32 g NaCN (49.007 g/mol) and 23.45 g HCN (27.025 g/mol;
Ka = 6.2 x 10-10) in water up to a volume of 600.0 mL.
a. What is the pH of the mixture?
b. What is the pH after the addition of 50.00 mL of 3.00 M HCI? (Note: All volumes are additive.)
c. What is the pH after a further addition of 80.00 mL of 4.00 M NaOH?
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