Gases

 

60) m1 = 5.25 g SO2              m2 = 2.35 g N2             R = 0.0821 L•atm/mol/K

      V1 = 4.00 L                      V2 = 3.18 L                   V = 13.6 L

      T1 = 26°C = 299 K          T2 = 20°C = 293 K 

      (a) n1 = 5.25 g SO2 * 1 mol SO2/64.06 g SO2 = 0.0820 mol SO2

               n2 = 2.35 g N2 * 1 mol N2/64.06 g N2 = 0.0820 mol N2

           PV = nRT 

           P = nRT/V

           P = (0.0820 mol + 0.0839 mol) * 0.0821 L•atm/mol/K * 299 K/13.6 L

           P = 0.298 atm

     (b) P(N2) = PT - P(SO2) = 0.298 atm - 0.147 atm = 0.151 atm

     (c) PT = 0.298 atm