Question

How many moles of a gas sample are in 2.5 L container at 373 K and 203 kPa?


1.11 moles

0.66 moles

0.33 moles

0.17 moles

Answer 1

Try using the equation\[PV = nRT, n = \frac {PV}{RT}\] P = Pressure, V = Volume, T = temperature, R = universal gas constant.
Since you are given the pressure in kilopascals, use 8.314 L kPa/(k*mol) for R.