An air tank contains 25 liters of air. The tank is kept in a room that is 30 0C. The air pressure inside the tank is 2.5 atm. How many moles of air are in the tank?
gas laws
Using ideal gas equation,
PV = nRT
2.5×25 = n×0.0821×303
n = 2.51 mol
So 2.51 moles.of air are in the tank
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