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4.1 Acids

4.1 Acids

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Question 31

An excess of solid black copper(II) oxide is added to dilute sulfuric acid in a beaker to prepare a soluble salt.

copper(II) oxide (s)+sulfuric acid (aq)→copper(II) sulfate (aq)+water (l) \text{copper(II) oxide (s)} + \text{sulfuric acid (aq)} \rightarrow \text{copper(II) sulfate (aq)} + \text{water (l)} copper(II) oxide (s)+sulfuric acid (aq)→copper(II) sulfate (aq)+water (l)

Describe the experimental procedure to obtain a sample of pure, dry copper(II) sulfate crystals from the mixture of copper(II) sulfate solution and excess solid copper(II) oxide in the beaker.

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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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