Calculating Enthalpy for CaCl2+H20 -> Ca+2HCl

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To calculate the theoretical enthalpy for the reaction CaCl2 + H2O → Ca + 2HCl, the enthalpies of formation for each product should be used. Hess's law is applicable here, allowing for the calculation of the overall enthalpy change by summing the standard enthalpies of formation. The formula delta H = m * c * delta T is also relevant for determining the heat change in the reaction. Engaging with thermochemistry can be challenging, but it is essential for accurate calculations. Understanding these principles will aid in finding the percent error effectively.
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Homework Statement



I need to find a theoretical enthalpy for a reaction so that I can find a percent error.
the reaction is:
CaCl2+H20 =>Ca)+2HCl

Homework Equations



delta H=m*c*delta T

The Attempt at a Solution


Should I use the enthalpies of formation for each of the products?
 
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According to Hess's law, standard enthalpies of formation will work.
 
yeah, Hess's law is the way to go. and have fun with thermochem. it was hell for my class last year. i hope you survive.
 

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