You have the given equation:2C 4 H 10 (NO2) 2 + 9O 2 ---> 8CO 2 + 2N 2 + 10H 2 0

Question

You have the given equation:2C4H10(NO2)2 + 9O2---> 8CO2 + 2N2 + 10H20 and itis given that
Hc C4H10(NO2)2 = -528.3kJ/mol. If youwere to calculate the H of carbon dioxide using Hess's Lawequation [Hf = nHf(products) - nHf (reactants)] what valuewould you plug into for Hf? Would it be-528.3kJ/mol? or would you have to multiply that number by 2 sincethere are 2 moles of C4H10(NO2)2? You have the given equation:2C4H10(NO2)2 + 9O2---> 8CO2 + 2N2 + 10H20 and itis given that
Hc C4H10(NO2)2 = -528.3kJ/mol. If youwere to calculate the H of carbon dioxide using Hess's Lawequation [Hf = nHf(products) - nHf (reactants)] what valuewould you plug into for Hf? Would it be-528.3kJ/mol? or would you have to multiply that number by 2 sincethere are 2 moles of C4H10(NO2)2?

Explanation / Answer

Yes, you would have to multiply by two precisely because of thereason you stated. You always have to take into account thecoefficients. Hope this helps!

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