In a 1.0L vessel at 1000K, 0.250 mol SO2(g) and 0.200 mol O2(g) react to form 0.162 mol SO3 at equilibrium. What is the Kc at 1000K for this reaction? 2SO2(g) + O2(g) <-> 2SO3(g) (balanced equation)

This problem is supposed to be solved using an ICE table.

Plz help me I have no idea how to use ICE tables

The size (radius) of an oxygen molecule is about 2.0 ×10−10m. make a rough estimate of the pressure at which the finite volume of the molecules should cause noticeable deviations from ideal-gas behavior at ordinary temperatures (t= 300k ). assume that deviatons would be noticeable when volume of the gas per molecule equals the volume of the molecule itself.