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Comparing concentration with strength

Quiz by Oak National Academy: GCSE Combined Science AQA Higher

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6 questions
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  • Q1
    Match the following key terms to their definitions.
    Users link answers
    Linking
    30s
  • Q2
    Which of the following statements about a strong acid in an aqueous solution is correct?
    It is completely ionised.
    It is partially ionised.
    It releases very few H⁺ ions.
    It has a pH above 7.
    30s
  • Q3
    Why do strong acids have a lower pH than weak acids of the same concentration?
    they contain fewer H⁺ ions
    they absorb more water
    they ionise partially
    they contain more H⁺ ions
    30s
  • Q4
    What happens to the pH of a solution if the hydrogen ion concentration increases by a factor of 10?
    the pH decreases by 1
    the pH increases by 10
    the pH increases by 1
    the pH decreases by 10
    30s
  • Q5
    How can titration curves help chemists?
    they measure the temperature of a reaction
    they help identify weak acids
    they allow chemists to pinpoint an accurate end point
    they show the colour change in the solution
    30s
  • Q6
    What happens during the neutralisation of a weak acid?
    the pH changes quickly after the end point is reached
    the pH stays constant throughout
    the pH decreases rapidly at first
    the pH changes gradually at the start
    30s

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