pv nrt
How can I find concentration using a mole fraction and PV=nRT (Ideal Gas Law)?
I have used Dalton’s Law to find partial pressure is that P?
If so,
I have the Temperature, Volume, Pressure, and R (ideal gas constant). n=PV/RT. Now what?
So n = PV/RT gives you the number of moles of an ideal gas. Assuming the you found out the partial pressure of the gas in question, the concentration (n/V or Molarity) is simply equal to P/RT. However, if you are talking about density, then what you need to do is multiply n with the molar mass (MM) to get the actual mass and divide by V. Rearranging this equation, we get: density = P(MM)/RT. Note that the concnetration equals density/MM.
Concentration (Molarity) = n/V = P/RT
Density (Grams/Liter) = n(MM)/V = P(MM)/RT
Concentration * MM = Density
PV nRT fail
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