Which of the following compounds contains the lead (iv) ion?
a. pbo2
b. pbcl2
c. pb2o
d. pb4o3

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?