What volume of carbon (IV) oxide in dm 3 is produced at s.t.p. when 2.50g…

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Chemistry NECO 2009

What volume of carbon (IV) oxide in dm 3 is produced at s.t.p. when 2.50g of CaCO3 reacts with excess acid according to the following equation? CaCO3(s) + 2HCI(aq) → CaCl2(aq) + H2O(1) + CO2(g)

[CaCO2 100; molar volume of a gas at s.t.p. = 22.4dm 3]

  • 0.28
  • 0.56 checkmark
  • 2.24
  • 5.6
  • 11.2

The correct answer is: B

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