== Condenser In and Out == 

 Is it just me or does the "in" and "out" arrows on the condenser seem backwards? I have always setup them the other way around. You want the coldest part to be the last part of the condenser, to ensure all vapors get condensed and go back into the flask. This means the cold water should come in the opposite side to the hot vapor side. Its a basic principle of a counter-current heat exchanger... the temperature difference is maximized at all points.