APFIVE Indicator pKa Versus Solution pH
A researcher uses the color change of an indicator to determine the exact pH of a solution, assuming the indicator changes color at the solution’s pH. What is the conceptual mistake?
A
Confusing the indicator’s pKa with the solution’s pH
B
Assuming the indicator’s color change point exactly matches the solution pH
C
Misinterpreting the role of indicators in pH measurement
D
Overestimating the precision of pH indicators
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