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Representations of a mole

Quiz by Oak National Academy: GCSE Chemistry Edexcel Higher

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6 questions
Show answers
  • Q1
    What does one mole of any substance contain?
    the mass of the substance in grams
    6.02 × 10²³ particles
    1000 particles
    6.02 × 10²⁰ things
    30s
  • Q2
    Order the following steps in the process of converting grams to moles.
    Users link answers
    Linking
    30s
  • Q3
    Why is it important to choose the appropriate apparatus for measurements in chemistry?
    to reduce measurement uncertainty
    to make cleaning up easier
    to complete experiments faster
    to use fewer chemicals
    30s
  • Q4
    Which of the following best describes the term "accuracy"?
    the number of significant figures in a measurement
    the repeatability of measurements
    how close a measured value is to the true value
    the precision of the measurement tools
    30s
  • Q5
    If the relative formula mass of sodium chloride (NaCl) is 58.5, what is the mass of 2 moles of NaCl? Give the answer to 3 significant figures.
    Users enter free text
    Type an Answer
    30s
  • Q6
    Calculate the number of SO₄²⁻ ions in 34 g of Al₂(SO₄)₃. The answer is ______ × 10²³. Give your answer to 3 significant figures.
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    Type an Answer
    30s

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