The density of krypton gas at 1.21 atm and 50.0 degrees Celsius is _______g/L?
What is the density of krypton gas at a pressure of 1.21 atm and a temperature of 50.0 degrees Celsius, expressed in grams per liter (g/L)?
2 Answers
One mole of Kr has a mass of 83.8 grams.
At STP it would occupy 22.414 liters.
At 1.21 atm and 50 C it will occupy
(22.414 L) (1/1.21) (323.15/273.15) = still about 22 L, but use calculator.
Then the density is 83.8 grams divided by (number of liters from previous line)
Feb 15, 2025
Volume of 1 mole (83.8 g) of Kr = V = nRT/P
V = 1 x 0.082057 x (50.0+273.15) / 1.21 atm
V = 21.9 L
g/L = 83.8 g / 21.9 L = 3.82 g/L
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