Question 23: Calculate the Ka or Kb of the weak acids or bases as asked. Report your answers to two significant figures, and if you use scientific notation use this format: 0.0015 is 1.5E-3. A 0.129 M solution of a weak base has pH of 10.18. The Kb value of the base is 1.8E-9 × A 0.118 M solution of a weak acid has pH of 2.87. The Ka value of the acid is 1.6E-5✔

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For the first one, I've also tried 1.7E-9 and 1.77E-9. Neither is correct.

Question 23:
Calculate the Ka or Kb of the weak acids or bases as asked. Report your answers to two significant
figures, and if you use scientific notation use this format: 0.0015 is 1.5E-3.
A 0.129 M solution of a weak base has pH of 10.18. The Kb value of the base is 1.8E-9 ×
A 0.118 M solution of a weak acid has pH of 2.87. The Ka value of the acid is 1.6E-5✔
Transcribed Image Text:Question 23: Calculate the Ka or Kb of the weak acids or bases as asked. Report your answers to two significant figures, and if you use scientific notation use this format: 0.0015 is 1.5E-3. A 0.129 M solution of a weak base has pH of 10.18. The Kb value of the base is 1.8E-9 × A 0.118 M solution of a weak acid has pH of 2.87. The Ka value of the acid is 1.6E-5✔
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