soalan kuiz kimi-'A'! 2 PDT III KMS-hehdi

Answer All

     1)  Arrange in order strength oxidizing  agent

          Br₂, Li⁺, H⁺, I₂                                            E⁰ please refer SRP table

      2) Arrange in order strength reducing  agent

          Ag, Co, Cu, Zn                                            E⁰ please refer SRP table

    3) A galvanic cell consist of a lead anode immersed in a 0.20M solution  

        Pb(NO₃)₂ and a platinum cathode that has gaseous hydrogen bubbling 

        over it at a pressure of 1 atm. [H⁺]=0.1 M

          [E⁰ Pb²⁺ = -0.13V E⁰ H⁺ = 0.00V]

          Calculate  E_cell

    4) A galvanic cell consist of a silver  cathode immersed in a 0.15M 

        solution AgNO₃ and a platinum anode that has gaseous hydrogen 

        bubbling over it at a pressure of 1 atm. [H⁺]=0.02 M

          [E⁰ Ag⁺ = +0.80V E⁰ H⁺ = 0.00V]

          Calculate  E_cell

     5) A current 7.5A pass through a Al₂O₃ (l) for 2 hours. Determine mass Cu 

         deposited at cathode

     6) A current 4.75A pass through a CuSO₄ (aq) for 1 hours. Determine mass 

         Al deposited at cathode

         Answers please refer from your tutorial lecturers!!!! :)

         Hepi fasting!