A sample of a hydrocarbon was found to contain 62.02% carbon, 10.43% hydrogen and the remainder oxygen by mass. Determine the empirical formula for this hydrocarbon.
#1
O C3H60
#2
C6H120
#3
C6H60
#4
C3H30

A5 mole sample of liquid acetone is converted to a gas at 75.0°c. if 628 j are required to raise the temperature of the liquid to the boiling point, 15.600 kj are required to evaporate the liquid, and 712 j are required to raise the final temperature to 75.0°c, what is the total energy required for the conversion?