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vera_ewing
 one year ago
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vera_ewing
 one year ago
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taramgrant0543664
 one year ago
Best ResponseYou've already chosen the best response.1Ka= [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
 one year ago
Best ResponseYou've already chosen the best response.1pH=logKa 4.5=log Ka 4.5=logKa 10^4.5=Ka

taramgrant0543664
 one year ago
Best ResponseYou've already chosen the best response.1It 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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