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What is the density of Radon (Rn) gas at STP (standard temperature and pressure)? How do I solve/set up this problem? Thank you!

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asked by Cassie
  1. If it is a perfect gas it is 22.4 moles per liter at STP

    molecular mass = 222 grams/mol
    so

    222 grams/22.4 liter = 9.91 grams/liter

    You can convert that to Kg/m^3 or whatever if you chose.

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    posted by Damon
  2. brain stalled out
    22.4 liters / mol

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    posted by Damon
  3. http://hyperphysics.phy-astr.gsu.edu/hbase/kinetic/idegas.html

    look under section on Standard temperature and pressure

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    posted by Damon
  4. It is worth remembering that one mole is 22.4 liters at STP because often it is faster than going through P V = n R T

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    posted by Damon
  5. This is helpful thank you!

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    posted by Cassie
  6. You are welcome :)

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    posted by Damon

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