An acid-base indicator has a K_(a) of 3.0 xx 10^(-5). The acid form of – InterviewSolution

1.	An acid-base indicator has a K_(a) of 3.0 xx 10^(-5). The acid form of the indicator is red and the basic form is blue. (a) By how much must the pH change in order to change the indicator from 75% red to 75% blue?
Answer» 0.95 2.3 0.75 5 Answer :A

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