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### Topic: General Enthalpy Questions  (Read 1143 times)

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#### eigen

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##### General Enthalpy Questions
« on: October 02, 2010, 03:58:17 PM »
1) Use your value for the heat of neutralization, $request=http://www.forkosh.dreamhost.com/mimetex.cgi?{+\mathrm{\Delta{H_1}}+=+-62\;\mathrm{kJ/mol}&hash=aba9d30a3b44f15774f9ef8499072567$, to determine the amount of heat evolved when 10.00 mL of 0.4992 M $request=http://www.forkosh.dreamhost.com/mimetex.cgi?{+\mathrm{HNO_3}&hash=aa8969e5bb420d0a61cc7393d28c6d50$ reacts with 10.00 mL of 0.5005 M NaOH.

2) The standard enthalpy of formation of $request=http://www.forkosh.dreamhost.com/mimetex.cgi?{+\mathrm{Li^{+}(aq)}&hash=6a19528bc22764c1d9ed11c4c66837cf$ is -278.5 kJ/mol. How much heat is evolved
when 0.0756 g of Li(s) reacts with excess hydrochloric acid?

Thanks a bunch!