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N5 Chemistry - Calculations 2

Quiz by Isabel McCluskey

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8 questions
Show answers
  • Q1
    CH₄ + 2O₂ → CO₂ + 2H₂O What mass of carbon dioxide will be produced when 32g of methane is completely combusted in oxygen?
    16g
    88g
    32g
    44g
    30s
  • Q2
    C₃H₈ + 5O₂ → 3CO₂ + 4H₂O What mass of carbon dioxide will be produced when 11g of propane is completely combusted in oxygen?
    33g
    132g
    11g
    44g
    30s
  • Q3
    Fe₂O₃(s) + 3CO(s) → 2Fe(l) + 3CO₂(g) What mass of iron (III) oxide is required to produce 280kg of iron?
    320kg
    160kg
    400kg
    280kg
    30s
  • Q4
    The precentage by mass of sodium in sodium chloride (NaCl) is equal to
    60.7%
    23%
    39.3%
    58.5%
    30s
  • Q5
    The precentage by mass of iron in iron (III) oxide (Fe₂O₃) is equal to
    70%
    56%
    48%
    35%
    30s
  • Q6
    The precentage by mass of oxygen in calcium carbonate (CaCO₃) is equal to
    48%
    52%
    40%
    16%
    30s
  • Q7
    The precentage by mass of nitrogen in ammonium nitrate (NH₄NO₃) is equal to
    35%
    17.5%
    82.5%
    65%
    30s
  • Q8
    The precentage by mass of sodium in sodium phosphate is equal to
    58%
    19.5%
    42%
    14%
    30s

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