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Please help with A.P. Chemistry...I'm desperate.?

From the data below, calculate the total heat (in J) needed to convert 0.333 mol of gaseous ethanol at 300 degrees celcius and 1 atm to liquid ethanol at 25.0 degrees celcius and 1 atm.

bp at 1 atm: 78.5 degrees celcius

c(gas) = 1.43 J/g*C

(delta)H^0vapor = 40.5 kJ/mol

c(liquid) = 2.45 J/g*C

I really just need someone to tell me how to solve this. I don't care if someone gives me the answer I just need to know the steps to solve it and the equations that are used.

Thanks.

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