A) a concentration of 5.24 ppm he means 5.24 μl of he per liter of air. using the ideal gas law in find how many moles of he are contained in 5.24 μl at 25.00°c (298.15 k) and 1.000 atm. this number is the molarity of he in the air. (2.11x10-7m) (b) find the molar concentrations of ar, kr, and xe in air at 25°c and 1 atm.
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A) a concentration of 5.24 ppm he means 5.24 μl of he per liter of air. using the ideal gas law in f...
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