Q: What is the pH of a solution containing 0.125 M KH2PO4 and 0.175 K2HPO4 Ka...

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Question

Q: What is the pH of a solution containing 0.125 M KH2PO4 and 0.175 K2HPO4 Ka (H2PO4-) = 6.2 x 10-8 Ka (HPO42-) = 4.8 x 10-13

Q: A 0.15 M solution of a weak acid is 3.0 % dissociated. What is the Ka of this acid?

Q: A solution of aspirin was prepared that is 0.16 M. The pH of this solution was measured to be 2.43. What is the Ka of aspirin?

Q: A solution of formic acid (Ka = 1.8 x 10-4). The pH is 2.8. What is the initial concentration of formic acid.

Q: If the pH of a 1.7 x 10-3 M solution of codeine, a weak base, is 9.59, what is the Kb of this drug?

Q: What mass of sodium acetate must be added to 750 mL of 0.200 M CH3COOH (Ka = 1.8 x10-5) to generate a buffer of pH = 5.0

Q: What mass of NaOH must be added to 750.0 mL of 0.200 M CH3COOH to generate a buffer of pH = 5.0.

Answer 1

Answer #1

Answer 2

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