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4.1 Acids

4.1 Acids

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Question 197

A student analysed a sample of tap water. The results are shown in Table 1.

Table 1

Analysis of tap water
Ion concentration(mg/dm³)
Magnesium ions15
Chloride ions32
Sulfate ions48
pH value
pH7

State the information from Table 1 that shows that the tap water sample is neutral.

[1]
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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