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Gas Laws and Stoichiometry

Gas Laws: Combined Gas Law and Ideal Gas Law

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Stoichiometry: Mass-Mass and Mole-Mole
Stoichiometry: Volume-Volume and Limiting Reagents
Gas Laws: Boyle's Law and Charles' Law
Gas Laws: Combined Gas Law and Ideal Gas Law

Combined Gas Law
 
P1V1/T1 = P2V2/T2
 
T = Temperature
P = Pressure
V = Volume
 
A gas takes up 17 liters, has a pressure of 2.3 atm, and a temperature of 299 K. If I raise the temperature to 350 K and lower the pressure to 1.5 atm, what is the new volume?
 
 (12)(23) / 200  =  (14)x / 300
 
 276 / 200  = 14x / 300
 
82800 = 2800x
 
x = 29.57 L
 
 

Ideal Gas Law

PV = nRT
 
P = pressure
V = volume
n = number of moles
R = .0821
T = Temperature
 
How many moles of oxygen will occupy a volume of 2.5 liters at 1.2 atm and 25 degrees Celsius?
 
n = PV / RT
 
n = (1.2)(2.5) / (.0821)(298)
n = .122