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4.1 Acids

4.1 Acids

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Question 33

The mean volume of dilute hydrochloric acid required to neutralise a potassium hydroxide solution was determined from the results of a titration.

This exact volume of dilute hydrochloric acid was subsequently added to 25.0 cm3 of the potassium hydroxide solution in a conical flask (without any indicator present).

Devise a plan to produce a pure, dry sample of potassium chloride crystals from this neutralised mixture.

[3]
Markscheme

4.1 Acids Questions

  1. GCSE
  2. /Chemistry
  3. /4.1 Acids

276 exam-style questions on Edexcel GCSE Chemistry 4.1 Acids, covering 4.1.1 Acids, alkalis and the pH scale, 4.1.2 Hydrogen ion concentration and pH, 4.1.3 Dilute and concentrated, weak and strong acids, 4.1.4 Bases, alkalis and the reactions of acids, 4.1.5 Chemical tests for hydrogen and carbon dioxide, 4.1.6 Neutralisation as a reaction of acids with bases, 4.1.7 Preparing soluble salts, and 4.1.8 Solubility rules and preparing insoluble salts. Each one has a worked solution and a mark scheme showing where the marks go.

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