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A tablet containing 500.0 mg of aspirin (acetylsalicylic acid or HC 9 H 7 O 4 ) was dissolved in enough water to make 100

A tablet containing 500.0 mg of aspirin (acetylsalicylic acid or HC₉H₇O₄) was dissolved in enough water to make 100 mL of solution. Given that K _a = 3.0 × 10^–4 for aspirin, what is the pH of the solution?

1.57

2.54

5.08

3.52

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