Japan Pharmacist Exam Practice Questions - Japan National Pharmacist Examination (Yakuzaishi Kokka Shiken) Exam

A weak base has pKa 8.0. At physiologic pH 7.0, which statement best describes its ionization?

It is mostly unionized because pH is below pKa It is mostly ionized because pH is below pKa It is exactly 50% ionized and 50% unionized It is completely degraded by acid hydrolysis

Correct Answer:

It is mostly ionized because pH is below pKa

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