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Author Question: The pH of a 0.265 M solution of an aqueous weak acid (HA) is 3.20. The Ka for the weak acid is: (Read 96 times)

penguins

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Question 1

The pH of a 0.23 M solution of a weak monoprotic acid, HA, is 2.92. Calculate the Ka for this acid.

0.23
1.2 × 10–3

5.3 × 10–3

6.3 × 10–6

4.0 × 10–11


Question 2

The pH of a 0.265 M solution of an aqueous weak acid (HA) is 3.20. The Ka for the weak acid is:

2.4 × 10–3.
4.0 × 10–7.
1.5 × 10–6.
3.2.
None of these are correct.


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Marked as best answer by penguins on Mar 21, 2021

coreycathey

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penguins

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Reply 2 on: Mar 21, 2021
Great answer, keep it coming :)


marict

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Reply 3 on: Yesterday
:D TYSM

 

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