Boyle's, Charles', and Gay-Lussac's Law can be combined together for calculations in which more than one of the properties of gas change. Look in your text p.453-457 for help with this.
Homework: p.457 #18-21; STP means T=0 degrees Celcius and P=101.3 kPa
Homework: p.457 #18-21; STP means T=0 degrees Celcius and P=101.3 kPa