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    žCalculate the standard enthalpy change of formation of butane, C4H10.
    žUse the data:


    ž∆Hc (graphite, C) = -393 kJ/mol
    ž∆Hc (hydrogen, H2) = -286 kJ/mol
    ž∆Hc (butane, C4H10) = -2877 kJ/mol

    My main problem is getting the balanced equation. If I have that for the formation of butane, I think I could do it from there.
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    I think the equation you're looking for may be:

    4C(g) + 5H2(g) --------------> C4H10
 
 
 
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