(a) Using the expression Ka=[H+][A−][HA] , explain how to determine which solution has the lower pH , 0.10MHF(aq) or 0.10MHC2H3O2(aq) . Do n

Question

(a) Using the expression Ka=[H+][A−][HA] , explain how to determine which solution has the lower pH , 0.10MHF(aq) or 0.10MHC2H3O2(aq) . Do not perform any numerical calculations.

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niczorrrr 4 years 2021-09-05T13:15:31+00:00 1 Answers 1343 views 1

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  1. Giakhanh
    1
    2021-09-05T13:16:59+00:00
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    Answer:

    Ka=[H+][A−]/[HA]

    which solution has the lower pH, 0.10MHF(aq) or 0.10MHC2H3O2(aq) :

    Higher value of Ka indicates greater ionization thus more protons in solution, higher H+ concentration in solution means lower pH value.

    Since HF have higher Ka have, thus HF solution will have lower pH.

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