Homework Help: Chemistry

Posted by Sam on Saturday, October 20, 2012 at 10:08pm.

Please show me how to work!

Ethane, C2H6(g) can be made by reaction of hydrogen gas with acetylene, C2H2(g). the standard enthalpies of formation of ethane and acetylene are -84.68 and +226.73 kJ mol-1, respectively. what is the reaction enthalpy for the production of one mole of ethane? Write the balanced chemical equation for the reaction first.

Chemistry - DrBob222, Saturday, October 20, 2012 at 10:55pm
C2H2 + 2H2 ==> CH3CH3
dHrxn = (n*dHf products) - (n*dH reactants).
dHrxn = (n*dHf products) - (n*ch reactants)

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