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    Weak Acids and Buffer Solutions

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    Could you please show me in detail how to do this?

    1. Choose an appropriate weak acid from the list below to make 0.25 liter of a 0.1M buffer solution that has a pH of 4.7:


    Acetic acid (Ka = 1.8 x 10⁻⁵)
    Citric acid (Ka = 8.4 x 10⁻⁴)
    Benzoic acid (Ka = 6.4 x 10⁻⁵)

    Use the Henderson-Hasselbalch equation and insert values of pH = 7.4 and the Ka of your selected acid.

    Why did you choose this acid?

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    Solution Summary

    This solution explains how to choose the correct weak acid to make a buffer solution.