Use PV = nRT and solve for n. Remember to use kelvin for T; i.e., K = 273.2 + 25.5 C = ?
For the second part with oxygen just substitute the different values.
Post your work if you get stuck.
Determine the number of moles of Krypton contained in a 3.25 liter gas tank at 5.80 bar and 25.5 °C. If the gas were Oxygen instead of Krypton, how will the answer change? Explain.
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