Chemistry Pre-lab DQ on Charles and Boyles Law

I need a Chemistry Pre-lab DQ on Charles and Boyles Law.  The points needed are:

• What is the main purpose of this experiment?

• What are some of the major assumptions of this experiment?

• What are the major differences between Boyle's Law and Charles' Law?

• How can absolute zero and the gas constant be determined using the data from 
  the experiment?

The second question

Q)   Is the volume of an ideal gas really zero if cooled to absolute zero?