A flask contains 15.5mL of hydrogen that was collected under a pressure of 22.5 kPa. What pressure would have been required for the volume of the gas
to have been 9.00mL, assuming the same temperature?*

Consider the reaction: n2(g) + o2(g) ⇄ 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?