In an aqueous solution, the carboxylic acid ethyl red (acid form shown below) is used as an indicator. What is the pH of the solution when the concentration ratio of the acid:base form of the indicator is 2:1? (The pKa of ethyl red = 5.00)
In an aqueous solution, the carboxylic acid ethyl red (acid form shown below) is used as an indicator. What is the pH of the solution when the concentration ratio of the acid:base form of the indicator is 2:1? (The pKa of ethyl red = 5.00)
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