Aspirin acetylsalicylic acid c9h8o4 is a weak monoprotic, Ask an Expert

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Aspirin (acetylsalicylic acid, C9H8O4) is a weak monoprotic acid. To determine its acid-dissociation constant, a student dissolved 2.00 g of aspirin in 0.600 L of water and measured the pH. What was the K a value calculated by the student if the pH of the solution was 2.60?

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