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 the pH ofthe solution was 2.62?
Part B
A 0.100 M solution of ethylamine (C2H5NH2) has a pH of11.87. Calculate the Kb for ethylamine.
