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26 October, 20:56

The pH of a 0.25 M aqueous solution of hydrofluoric acid, HF, at 25.0 °C is 2.03. What is the value of Ka for HF?

6.0 * 10-5

3.5 * 10-4

1.1 * 10-9

2.0 * 10-9

none of the above

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  1. 26 October, 22:18
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    Last option that is none of above is right answer.
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