Question

a^b how much indicator ?​

Answer 1

Answer:

At a low pH, a weak acid indicator is almost entirely in the HIn form, the color of which predominates. As the pH increases, the intensity of the color of HIn decreases and the equilibrium is pushed to the right. Therefore, the intensity of the color of In- increases. An indicator is most effective if the color change is distinct and over a small pH range. For most indicators the range is within ±1 of the pKln value.

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Answer 2

Answer:

At a low pH, a weak acid indicator is almost entirely in the HIn form, the color of which predominates. As the pH increases, the intensity of the color of HIn decreases and the equilibrium is pushed to the right. Therefore, the intensity of the color of In- increases. An indicator is most effective if the color change is distinct and over a small pH range. For most indicators the range is within ±1 of the pKln value.