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    Calcium carbide (CaC2) reacts with water to form acetylene (C2H2) and Ca(OH)2.
    From the following enthalpy of reaction data, calculate ^Hof for CaC2(s):

    CaC2(s) + 2H2O------> Ca(OH)2(s) + C2H2(g) ^Ho= -127.2kJ

    What Thermodynamic Quantities do I use? What are the steps to the equation? Please show all of your work and define any symbols used. Thank you.

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    https://brainmass.com/chemistry/energetics-and-thermodynamics/thermodynamics-enthalpy-reaction-451050

    Solution Preview

    first, find the enthalpy of formation (Hof) of C2H2, Ca(OH)2, and H2O from your book.

    I found the following data from a google ...

    Solution Summary

    This solution shows how to calculate the enthalpy of reaction by using the enthalpy of formation.

    $2.49

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