vera_ewing
  • vera_ewing
.
Chemistry
  • Stacey Warren - Expert brainly.com
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SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
schrodinger
  • schrodinger
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taramgrant0543664
  • taramgrant0543664
Why D?
taramgrant0543664
  • taramgrant0543664
Ka= [H+][A-] / [HA] an ideal buffer is a 50% : 50% mix of [A-] & [HA] in which case the buffer is in the middle of its buffer range & since at 1/2 way in its range, [A-] = [HA] then K = [H+]
taramgrant0543664
  • taramgrant0543664
pH=-logKa 4.5=-log Ka -4.5=logKa 10^-4.5=Ka

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taramgrant0543664
  • taramgrant0543664
It should be acetic acid you can check pH=-log(1.85x10^-5) It should be 4.5 you can do the same to the others to see what their pH would be

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