The Ideal Gas Law

The Ideal Gas Law is where simpler laws such as Boyles law is derived from. As you can see, this law relates all the factors in a gas problem together. Keep in mind that this gas is an Ideal Gas which means that we neglect intermolecular forces and the volume of the molecules present. R is the universal gas constant which has the value .0821 L atm/mol K.





Helpful Links
http://www.chemguide.co.uk/physical/kt/idealgases.html
http://chemwiki.ucdavis.edu/Core/Physical_Chemistry/Physical_Properties_of_Matter/States_of_Matter/Gases/Gas_Laws/The_Ideal_Gas_Law
http://hyperphysics.phy-astr.gsu.edu/hbase/kinetic/idegas.html

Avogadro's LAw

Avogadro's Law tells us that for a gas at constant temperature and pressure, the volume is directly proportional to the number of moles of gas. For example, if the moles of a gas present is increased, the volume will increase in order for the pressure of the system to remain constant. Also, equal volumes of gasses at the same temperature and pressure have the same number of particles.

Helpful Links
http://www.chemistry.co.nz/avogadro.htm
http://www.britannica.com/science/Avogadros-law

Air Bag Lab

In this lab, we simulated the inflation of an airbag using a ziplock bag using baking soda and vinegar. To prevent the bag from not filling up or popping, we used stoichiometry and gas laws to calculate the right amount of both ingredients needed from the volume of the bag. To receive full credit, our teacher would pinch the bag and if both sides didn't touch or the bag didn't pop we would pass the lab. Luckily in our class, no one's bag popped and we all passed.

Characteristics of Gases

In our calculations, we consider gasses to have no definite volume which means that they expand spontaneously. Other properties of gases include being highly compressible and able to form homogeneous mixtures. Boyle's Law also states that pressure and volume of gasses are inversely related. For instance, if the volume of a container increases, fewer collisions with the container occur which is interpreted as a decrease in pressure.

Helpful Links
http://www.chemteam.info/GasLaw/Gas-Boyle.html
http://www.iun.edu/~cpanhd/C101webnotes/gases/boyleslaw.html