Consider the five balanced chemical reactions listed below, all using O2 as a re

Question

Consider the five balanced chemical reactions listed below, all using O2 as a reactant. Normally, O2 is an excess reagent for reactions because there is a large amount of it available in the air. For this question, suppose that you have5.92 moles of O2 and1.64 moles of any of the other reactants in every equation. Select those equations below in which O2 would be the limiting reactant.

See Periodic Table See Hint Consider the five balanced chemical reactions listed below, all using O2 as a reactant. Normally, O2 is an excess reagent for reactions because there is a large amount of it available in the air. For this question, suppose that you have5.92 moles of O2 and1.64 moles of any of the other reactants in every equation. Select those equations below in which O2 would be the limiting reactant. Choose one or more: A. C3Hs(g) +5 O2(g)- 3CO2(g)+4 H2O(g) B. None because in all the reactions O2 is in excess O C. 4 NHalg) + 5 O2(g) . 4 NO(g) + 6H2O(g) D. H25(g) + 2 O2(g) SO3(g) + H2O(g) O E. C6H1206(s) 6O2(g)6 CO2(g)+6 H2O(g)

Explanation / Answer

The limiting agent has due to following properties:

Given that

Moles of oxygen = 5.92 moles

Moles of other reagent = 1.64 moles

a.

5.92 mole O2 * 1 mole C3H8/ 5 mole O2

= 1.184 mole C3H8 used hence it is in excess

Thus O2 is limiting agent

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