Question
Why does the color change of an indicator take place over a range of about 2 pH units?
Step 1
This can be represented as: \[ HI \rightarrow H^+ + I^- \] where \( HI \) is the indicator in its acidic form and \( I^- \) is the indicator in its basic form. Show more…
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Why does the typical acid/base indicator exhibit its color change over a range of about 2 pH units?
Explain why an acid-base indicator changes color over a range of pH values rather than at a specific pH.
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