A 5000-ML Solution of 0

question 72

Multiple Choice

A 50.00-mL solution of 0.10 M HNO₂ is titrated with a 0.10 M KOH solution. After 25.00 mL of the KOH solution is added, what is the pH in the titration flask? [K_a(HNO₂) = 4.5 × 10^-4]

• A) 2.17
• B) 3.35
• C) 2.41
• D) 1.48
• E) 7.00

---

Definitions:

Ratify

To formally approve an agreement or treaty, making its provisions officially valid and binding.

Principal

The main party to a transaction, such as a borrower in a loan agreement or a buyer in a sales contract.

Contract

An enforceable pact by law that involves two or more individuals or groups.

Legal Capacity

The capability recognized by law for a person to act in a particular role or enter into a contract, often related to age and mental soundness.