What is the density of xenon gas at STP? a) 2.75 b)4.10 c) 5.86 d) 7.22

Answer 1

STP = standard temperature (276K) and pressure (1 atm)

At STP 1 mole of gas = 22.4 liters

1 mol Xe = 131 g

So density = mass/volume = g/L

131 g / 22.4 L = 5.86 g/L (Answer c)