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Home Q & A Board Biology-Related Homework Help General Biology
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mellnj mellnj
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11 years ago
Consider the following equation: CO + 2 H2 → CH3OH △H rxn = -128 kJ Calculate the amount of heat (in kJ) associated with complete reaction of 8.08 g H2. ?!?!?!
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#1
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11 years ago
Better topic title will get you better answers Face with Stuck-out Tongue

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Consider the following equation: CO + 2 H2 - CH3OH (heat) H rxn = -128 kJ
Calculate the amount of heat (in kJ) associated with complete reaction of 8.08 g H2.
A) -1034kJ
B) -512 kJ
C) -256 kJ
D) -1024 kJ .
E) none of the above

Solution

Quote
(8.08 g H2) / (2.0159 g H2/mol) x (-128 kJ / 2 mol H2) = -257 kJ
Mastering in Nutritional Biology
Tralalalala Slight Smile
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#2
11 years ago
for every 2 moles of H2 = 4gms of H2 ---> -128 KJ
==> for 8 gms ---> 8*-128/4 = -256 Kj
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#3
11 years ago
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