Gas+Law+Teaching+Wiki-+J.+Farian+&+S.+Williamson

=__**Gas Laws**__=

In chemistry there are six different laws scientists use when they when they are solving equations with gases. These are Boyle's, Charles', Gay Lussac's, Dalton's, Combined, and last the Ideal gas law. Each is used for specific things but the combined gas law is the master law and can be used to find any of the specifics you need such as pressure of gas, the volume of gas, and the temperature of gas. In order to solve these equations you will need to have the correct units which you can find by using stoichiometry. You need to know how to turn a number of kilo grams of a gas into a number of moles of gas and further into a number of milliters of gas and in reverse. By reading this wiki you should be able to solve gas law problems along with a brief understanding of stoichiometry.

Boyle's Law Charles' Law Gay Lussac 's Law Combined Law Dalton's Law Ideal Gas Law


 * __STOICH PROBLEMS:__**

Balance C5H12 + O2 --> CO2 + H2O C5H12 + **8**O2 = **5**CO2 + **6**H2O 10 grams of pentane = 0.1386 moles **n(O2) = 8n(C5H12)**
 * 1)** 10 grams pentane was burning: C5H12 + O2 --> CO2 + H2O How many grams of oxygen was used ?
 * 8** times this amount (0.1386 moles C5H12) of oxygen was used --> 8*0.1386mole*32g/mole = **35.48grams O2**

Balance: Fe+HCl>FeCl2+H2 Fe + **2**HCl = FeCl2+H2 As we can see from the balanced equation **n(Fe) = n(FeCl2)**, **10 moles of FeCl2 was formed in the reaction**
 * 2)** A piece of metallic iron (10moles) was dissolved in conc HCl. The reaction formed H2 and FeCl2. amount of formed FeCl2?