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July 3, 2015

Homework Help: Chemisty

Posted by Jenny on Tuesday, September 17, 2013 at 12:59am.

Given the data in the table below, ∆Horxn for the reaction



3NO2(g) + H2O(l) → 2HNO3(aq) + 3NO(g)

is __________ kJ.



Substance


∆Horxn (kJ/mol)

H2O(l)= -286

NO(g)= 90.0

NO2(g)= 34.0

HNO3(aq)= -207

NH3(g)= -46.0

A) -140
B) -508
C) -64
D) 140
E) 64

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