If an unknown amount of N2 gas at 12°C is warmed to 23° C and has a volume of 1.1 L at the warmer temperature, then what was the original volume, in L? Don't forget to use
Kelvins and round to the correct amount of sig digs.

)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.