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STOICHIOMETRY REVISION TEST

Quiz by salawati binti suboh

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10 questions
Show answers
  • Q1
    1. Four oxygen atoms have the same mass as one atom of copper. What is the relative atomic mass of copper?
    64
    16
    128
    4
    60s
  • Q2
    2. What is the correct method of calculating the relative formula mass of sodium carbonate, Na2CO3?
    (2 x 23) + 6 + (3 x 16)
    (2 x 11) + 6 + 8
    (2 x 23) + 12 + 16
    (2 x 11) + 6 + 3 x 8
    60s
  • Q3
    3. A compound CxH6 has a relative formula mass of 78. What is the value of x?
    12
    6
    2
    3
    60s
  • Q4
    4. What is the percentage of sulfur and oxygen in sulfur dioxide, SO2?
    Question Image
    D
    A
    B
    C
    60s
  • Q5
    5. What is the molar mass of CO2?
    22
    40
    44
    14
    60s
  • Q6
    6. What is the mass of one mole of aluminium chloride (remember to determine the correct formula first)?
    62.5
    30
    133.5
    116.5
    60s
  • Q7
    7. The molar mass of an element is equal to its..
    Atomic mass
    Valence electron
    Oxidation number
    Atomic number
    60s
  • Q8
    8. The mass of one mole of substance is called
    Atomic weight
    Molecular mass
    Mole constant
    Molar mass
    60s
  • Q9
    9. The molar mass of CaCl2 : Formula mass or Molecular mass?
    Molecular Mass, because CaCl2 is Covalent
    Formula Mass, because CaCl2 is ionic
    60s
  • Q10
    10. The molar mass of an element is the mass of one ….. of the element.
    gram
    kilogram
    atom
    mole
    60s

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