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) = P_T - P(SO₂) = 0.298 atm - 0.147 atm = 0.151 atm

     (c) P_T = 0.298 atm