200dm3 of CO is burnt completely according to the reaction 2CO+O2---2CO2 What volume of O2 will be required?
Correct answer: A. 100dm3
- A. 100dm3
- B. 50dm3
- C. 60dm3
- D. 70dm3
Explanation
2x24dm3 of CO => 24dm3 of O2 200dm3 => xdm3 x=100dm3
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Mole calculations connect mass, number of particles and Avogadro's number, while balanced equations provide the mole ratios used in stoichiometry. Questions cover limiting and excess reactants, theoretical yield and percentage yield, including identifying which reactant is consumed first and comparing the actual product with the maximum possible product.
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