The volume of a baloon occupied by a certain gas depends on the temperature and pressure.
Standard Temperature and Pressure (STP)
O degrees Celcius and 101.3 kPa (or 273 k)
Recall Standard Ambient Temperature and Pressure (SATP)
25 degrees Celcius and 100 kPa (or 298 k)
The volume of 1.0 mole of any gas at STP is 22.4 L
The Molar Volume at STP is 22.4
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Conversion Factors: 22.4 L/1 mol or 1 mol/22.4 L (At STP only)____________________________________________________________
Example: Find the volume at STP occupied by 12.5 mol of NH3 (g)Volume= 12.5mol x 22.4 L/1 mol =2.80 x 10 to the power of 2 L.
Example: Find the number of moles of 375 mL of SO3 (g)
# of moles = 375 mL x 10 the power of negative 3 L/ 1 mL x 1 mol/22.4 L = 0.0167 mol
Awsome picture! I love it. I think I'll have to include it in the Powerpoint when I make it for this unit! The summary is excellent guys! Good work.
ReplyDeleteTry and include some examples that we don't go over in class. Make up your own examples, take a question or two from your homework or textbook and solve them, and explain how you did it.
Great work!