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    pH of weak acid

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    I would solve these using the assumption technique first, then solve using the quadratic if necessary.

    a) 0.1 M solution of a weak acid HA with Ka = 1 x 10 - 5

    b) 0.01 M solution of a weak acid HX with Ka = 0.01

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    https://brainmass.com/chemistry/acids-and-bases/finding-ph-weak-acid-409457

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    It provides detailed solutions to calculate the pH of weak acids.

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