To calculate the number of moles of krypton gas in the sample, we can use the ideal gas law equation:
PV = nRT
Where:
P = pressure (STP is 1 atm)
V = volume (28.8 L)
n = number of moles (what we want to find)
R = ideal gas constant (0.0821 L.atm/mol.K)
T = temperature (STP is 273 K)
Substitute the known values into the equation:
(1 atm)(28.8 L) = n(0.0821 L.atm/mol.K)(273 K)
28.8 = 22.3023n
n = 28.8 / 22.3023
n = 1.29 mol
Therefore, the sample of krypton gas contains 1.29 moles of gas.
A sample of krypton gas collected at STP occupies a volume of 28.8 L. How many moles of gas does the sample contain?
mol
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1 answer