CHEMISTRY

JAMB 2000 - Question 24

Chemistry 2000 JAMB Past Questions - Question 24: The pOH of a solution of 0.25 mol dm−³ of hydrochloric acid is

Choose the correct answers from the options given.
The pOH of a solution of 0.25 mol dm−³ of hydrochloric acid is
A:
B:
C:
D:
Examkits App

Examkit's JAMB CBT App

Practice JAMB offline with our Online, PC and Mobile App

  • ✅ 25+ years of past questions (2000 to 2025)
  • ✅ Video solutions and explanation to questions
  • ✅ E-library
  • ✅ Study by topic
  • ✅ And more.

Correct Answer

B

Explanation

pOH =-log(2.5*10-1) =-log(-0.3979+1) =13.40
To find the pOH of a solution of hydrochloric acid, you can use the formula:

pOH = -log[OH⁻]

Since hydrochloric acid is a strong acid, it completely dissociates in water to form H⁺ ions and Cl⁻ ions. There are no OH⁻ ions present in the solution. Therefore, the pOH of a solution of hydrochloric acid is 14 (the pOH of a neutral solution at 25°C).

Frequently Asked Questions

Examkits is a JAMB CBT practice platform that provides over 20 years of past questions, Post UTME questions, and detailed video solutions to help students prepare for their exams.

You can practice JAMB past questions online, on Android, or on a desktop using the Examkits app. Just register on our website and choose your preferred device.

Yes. Our Android and Windows versions support offline usage. Once downloaded and activated, no internet is required to use most of the features.

Yes, Examkits provides detailed video explanations for all JAMB past questions from 2000 to 2024, helping students understand how to solve each problem.

Examkits offers free practice for some subjects. However, full access requires a one-time affordable activation fee for each version of the app.