Other questions in this quiz

2. When 7.95g of copper(II) oxide, CuO, was reacted with excess sulfuric acid and the resulting solution filtered and allowed to crystalise, 23.0g of hydrated CuSO4.5H2O were produced. The percentage yield is

  • 109
  • 69
  • 92
  • 34

3. 0.129g of CH4 fills a 200cm^3 container at 25degrees and 100KPa. Calculate Mr of methane

  • 16g
  • 1.04g

4. Calculate the volume of CO2 produced from 10000 tonnes of Fe2O3 [1 tonne = 10^6g]

  • 1.504 x 10^12
  • 1.504dm^3

5. Calculate the atom economy for this reaction

  • 84.2%
  • 72.7%

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