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Part A Aspirin (acetylsalicylic acid, C9H8O4) is a weak monoprotic acid. To determine its acid-dissociation constant, a...

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Chemistry

Part A

Aspirin (acetylsalicylic acid, C9H8O4) is a weak monoproticacid. To determine its acid-dissociation constant, a studentdissolved 2.00 g of aspirin in 0.600 L of water and measured thepH. What was the Ka value calculated by the student if thepHof the solution was 2.62?

Express your answer numerically using two significantfigures.

Ka=

Part B

A 0.100 M solution of ethylamine (C2H5NH2) has a pH of11.87. Calculate the Kb for ethylamine.

Express your answer numerically using two significantfigures.

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