Other questions in this quiz

2. The number of ions is 8.55g of Al2(SO4)3 (molar mass 342.3gmol-1) is

  • 0.125
  • 7.5 x 10^22
  • 1.5 x 10^22
  • 0.025

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

  • 16g
  • 1.04g

4. Calculate the atom economy for this reaction

  • 84.2%
  • 72.7%

5. The formula of a carbonate ion is

  • HCO3^2-
  • CO3-
  • CO3^2-
  • HCO3-

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