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ZIMSEC A-Level Chemistry

6.1.7.4pH and pOH

pH and pOH in ZIMSEC A-Level Chemistry: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic24 practice questions1 lesson

Learning objectives

What the syllabus expects you to be able to do.

  1. 6.1.7.4.1Calculate [H⁺(aq)] and pH for strong acids and bases.
  2. 6.1.7.4.2Explain and use pH, pOH, Kw and pKw in calculations.

Lessons

  • pH, pOH and the ionic product of water

    45 min

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Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

pH and pOH: sample question

1 mark

A solution of hydrochloric acid has pH 2.0. It is diluted by adding water until its volume is 100 times the original volume. What is the new pH?

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Turn pH and pOH into a strength.

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