To find the number of moles of krypton gas in the sample, we can use the ideal gas law equation:
PV = nRT
Where:
P = pressure = 1.30 atm
V = volume = 24.7 L
n = number of moles (what we want to solve for)
R = ideal gas constant = 0.0821 L.atm/mol.K
T = temperature in Kelvin = 17.0°C + 273.15 = 290.15 K
Plugging in the values:
(1.30 atm)(24.7 L) = n(0.0821 L.atm/mol.K)(290.15 K)
31.91 = 23.84n
Divide by 23.84:
n = 1.34 moles
Therefore, there are 1.34 moles of krypton gas in the sample.
A sample of krypton gas collected at a pressure of 1.30 atm and a temperature of 17.0 °C is found to occupy a volume of 24.7 liters. How many moles of Kr gas are in the sample?
mol
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