Question

The pressure of sodium vapour in a 1l container is 10 torr at 1000°c

Answer 1

n = PV/RT = (1/760) 1 / (0.082057 x 1273.15)

n = 8.82x10^-5 mole

atoms = 8.82x10^-5 x 6.022x10^23 = 5.31 x 10^19 atoms of Na

Answer 2

Answer:7.6×10^19

Explanation:PV=nRT,equation of state.

n=PV/RT

=1×10/760×0.0821×1273

=1.26×10^-4

Number of Na atoms=1.26×10^-4×6.02×10^23

=7.6×10^19

hope it helps...