An acid-base indicator has `K_b` of `1.0 × 10^(-5)`. The acid form of the indicator is red and the basic form is blue.

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Q 1189334217.     An acid-base indicator has `K_b` of `1.0 × 10^(-5)`. The acid form of the indicator is red and the basic form is blue. Then:
A

`pH` is `8.4` when indicator is `80%` red

B

`pH` is `9.6` when indicator is `80%` blue

C

`pH` is `8.4` when indicator is `80%` blue

D

`pH` is `9.6` when indicator is `80%` red

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Solution
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