raffle_snaffle
  • raffle_snaffle
Calculate the enthalpy of the reaction 4B(s)+3O2(g)→2B2O3(s) given the following pertinent information: B2O3(s)+3H2O(g)→3O2(g)+B2H6(g), ΔH∘A=+2035 kJ 2B(s)+3H2(g)→B2H6(g), ΔH∘B=+36 kJ H2(g)+12O2(g)→H2O(l), ΔH∘C=−285 kJ H2O(l)→H2O(g), ΔH∘D=+44 kJ Express your answer with the appropriate units.
Chemistry
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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raffle_snaffle
  • raffle_snaffle
Ive tried this problem 3 times and cant get rid of the 4th equation
raffle_snaffle
  • raffle_snaffle
@abb0t
raffle_snaffle
  • raffle_snaffle
@AloneS

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raffle_snaffle
  • raffle_snaffle
@sleepyjess
raffle_snaffle
  • raffle_snaffle
@whpalmer4
abb0t
  • abb0t
Use hess law.
abb0t
  • abb0t
reverse 1 and 4
okdutchman7
  • okdutchman7
You have to determine the enthalpy of the reaction
raffle_snaffle
  • raffle_snaffle
okay I will reverse one and four
raffle_snaffle
  • raffle_snaffle
@abb0t by the way that isn't suppose to be a 12 suppose to be 1/2
raffle_snaffle
  • raffle_snaffle
@okdutchman7 we need to use hess law
raffle_snaffle
  • raffle_snaffle
how is reversing 4 going to help me?
raffle_snaffle
  • raffle_snaffle
GOt it! And abbot you were not suppose to reverse 1 and 4.
abb0t
  • abb0t
that thing is so hard to read. LOL.

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