anonymous
  • anonymous
Consider the combustion reaction of propane: C3H8(g) + 5 O2(g) ® 3 CO2(g) + 4 H2O(g), where DH = – 531 kcal/mol. If 6.70 ´ 104 kcal of energy is released in the reaction, how many grams of oxygen were consumed?
Chemistry
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
Blanking on how to set this up....
IsTim
  • IsTim
I can't help much, but maybe I can help guide. Is this stoichiometry?
anonymous
  • anonymous
basically, its a unit in my book on energy i know this is very simple and i should be able to do this but i just dont want to get it wrong

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IsTim
  • IsTim
Also, what's DH??
anonymous
  • anonymous
delta H
anonymous
  • anonymous
enthalpy or heat of reaction which is the energy needed to break a covalent bond
IsTim
  • IsTim
Oh man. This university stuff? Also, to rperesent exponents use ^
anonymous
  • anonymous
U of Illinois
IsTim
  • IsTim
Aww. Bugger. Do you know about stoichiometry? I think you could apply that knowledge here.
anonymous
  • anonymous
yeah, i do. i just dont know what to do with the unit of kcal they give me. there are no moles of propane to use so i'm stumped
anonymous
  • anonymous
well 1 mole...
IsTim
  • IsTim
I'm stumped too. Sorry about that.

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