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Edexcel A-Level Chemistry A2 14.6 The Difference Between a Strong Acid and a Weak Acid in Terms of the Degree of Dissociation Questions

Define strength through dissociation rather than concentration, then use equilibrium position and common-ion suppression to explain why some later dissociations are limited.

Syllabus
First assessment 2019
Course
Chemistry YCH11
Level
A2

Exam points

  • State that strong acids dissociate almost completely while weak acids dissociate only partly.
  • Explain limited further dissociation by high H3O+ shifting the next equilibrium left.
  • Compare acid samples through reaction stoichiometry rather than assuming equal ion concentrations.

Edexcel A-Level Chemistry A2 14.6 The Difference Between a Strong Acid and a Weak Acid in Terms of the Degree of Dissociation Questions question 1

[Maximum number: 1]

Propanoic acid is a weak acid.

State the difference between a weak acid and a strong acid such as hydrochloric acid.

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