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What volume of oxygen at s.t.p would react with carbon to form 4.40g of CO2...

Chemistry
WAEC 1997

What volume of oxygen at s.t.p would react with carbon to form 4.40g of CO2 according to the following equation? C(s) + O2(g) → CO2(g) [O = 16; C =12; 1 mole of a gas occupies 22.4dm3 at s.t.p]
  • A. 0.224dm3
  • B. 2.24dm3
  • C. 4.40dm3
  • D. 4.48dm3
  • E. 22.4dm3
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Correct Answer: Option B
Explanation
From the equation, C + O2 → CO2 : 22.dm3 of oxygen is required to form 44g of CO2 the volume of O2 required to produce 4.4gm is x, :. x = 44/44 X 22.4dm3

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