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    The standard enthalpy change of vaporization of ethanol is +43 kJmol-1 .Calculate the enthalpy change when 0.5 g of ethanol vaporizes at its boilingpoint at 1 bar.

    Can someone explain to me, how to get the answer, thanks
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    How many moles of ethanol do you have? Do you need to adjust the enthalpy change per mole for the given reaction conditions? (Think about the definition of standard enthalpy change of vaporization.)
 
 
 
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