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4.1 Acids

4.1 Acids

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Question 1

A student wants to prepare a pure, dry sample of sodium nitrate (NaNO3\text{NaNO}_3NaNO3​) crystals.

Describe a detailed experimental procedure to:

  1. Carry out a titration to find the exact volume of dilute nitric acid (HNO3\text{HNO}_3HNO3​) needed to neutralise 25.0 cm3 of sodium hydroxide solution (NaOH\text{NaOH}NaOH).
  2. Use this volume to obtain a pure, dry sample of sodium nitrate crystals.
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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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