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22-01-2024
Chemistry

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A 0.10 M solution of a weak acid, HA, has a pH of 5.0. What is the value of Ka for the acid?
1x 10⁻⁴
1 x 10⁻⁹.⁶
1 x 10⁻⁹
1 x 10⁻⁹.⁸

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