Which of the Following Acids Should Be Used to Prepare

question 40

Multiple Choice

Which of the following acids should be used to prepare a buffer with a pH of 4.5?

• A) HOC₆H₄OCOOH, K_a = 1.0 × 10^-3
• B) C₆H₄(COOH)₂, K_a = 2.9 × 10^-4
• C) CH₃COOH, K_a = 1.8 × 10^-5
• D) C₅H₅O₅COOH, K_a = 4.0 × 10^-6
• E) HBrO, K_a = 2.3 × 10^-9

---

Definitions:

Notified

Being informed or made aware of information, actions, or requirements officially or formally.

Specific Performance

A legal remedy in contracts where the court orders the party who breached the contract to perform the promised duty as outlined in the contract.

Breach of Contract

The failure to perform any term of a contract, written or oral, without a legitimate legal excuse.

Caveat Emptor

A legal principle that the buyer assumes the risk of quality in a purchase unless protected by warranty.