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IB Chemistry SL 3.1.6 Strong Vs Weak Acids Bases Questions

Use real SL exam questions to compare strong and weak acids or bases by ionization, pH, conductivity and neutralization.

Syllabus
First assessment 2025
Course
Chemistry SL
Level
SL

Exam points

  • Explain stronger and weaker acids or bases through degree of ionization and resulting hydronium or hydroxide concentration.
  • Compare equal-concentration strong and weak acids or bases using pH, conductivity, neutralization volume or heat evolved.
  • Distinguish strong/weak from concentrated/dilute and identify the defining Brønsted–Lowry behaviour or conjugate-base strength.

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Study 3.1.6—Strong vs. weak acids/bases conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

IB Chemistry SL 3.1.6 Strong Vs Weak Acids Bases Questions question 1

[Maximum number: 1]

Chlorine undergoes many reactions.

Chlorine gas reacts with water to produce hypochlorous acid and hydrochloric acid.

Cl2( g)+H2O(l)⇌HClO(aq)+HCl(aq)\mathrm{Cl}_{2}(\mathrm{~g})+\mathrm{H}_{2} \mathrm{O}(\mathrm{l}) \rightleftharpoons \mathrm{HClO}(\mathrm{aq})+\mathrm{HCl}(\mathrm{aq})

Hypochlorous acid is considered a weak acid. Outline what is meant by the term weak acid.

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