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A weak acid indicator HIn is blue while its conjugate base In is green. Kaln for the indicator is 7.7 x 10*5 Over what pH ran
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Answer #1

Hin po) & itt tln- (aq) 60) 2 pH= pka + Log C based Cacid] In general, [base = I for Cacid lo og Leasta Least. [ base Cacid]pH ranges from pka + A PH 7 pka_l to pka to pka = -log(ka) = -log C27x105)= 4.1 ... pH (Lower) .= pka_1 = 4.18)= 3.1 PA c up

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