Post Utme Uniosun 2025 Chemistry Question 8

Practice objective / multiple choice question 8 from the 2025 Post Utme Uniosun Chemistry examination.

Post Utme Uniosun 2025 Chemistry Objective / Multiple Choice
Question 8 POST_UTME_UNIOSUN • 2025 • CHEMISTRY • objective

A 0.1 M solution of a weak acid, HA, has a pH of 4.2. Calculate the value of Ka for the acid.

Answer Options

Correct Answer A. 1.3 × 10^-5
B. 1.3 × 10^-4
C. 1.3 × 10^-3
D. 1.3 × 10^-2
Correct Answer
A
Correct Option:
1.3 × 10^-5

About This Question

This is Post Utme Uniosun 2025 Chemistry Question 8. It is one of the objective questions from the 2025 Post Utme Uniosun Chemistry examination.

View More Post Utme Uniosun 2025 Chemistry Questions More Post Utme Uniosun Practice Questions Back to Questions

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Chat with Support