Use the following to answer questions 55-58:
-The galvanic cell shown above uses the half-cells Pb²⁺/Pb and Zn²⁺/Zn,and a salt bridge containing KCl(aq).The voltmeter gives a positive voltage reading.The electrode B could be inert platinum metal or zinc.

Question

Use the following to answer questions 55-58:

-The galvanic cell shown above uses the half-cells Pb²⁺/Pb and Zn²⁺/Zn,and a salt bridge containing KCl(aq).The voltmeter gives a positive voltage reading.The electrode B could be inert platinum metal or zinc.

Quizplus · Accepted Answer

The electrode B cannot be inert platinum metal in this specific context because the half-cells described involve reactions with Pb and Zn, indicating that these metals are part of the electrochemical reaction. Inert platinum is typically used when the reaction does not involve the electrode material itself, such as in gas electrodes or where the reactants and products are in the same phase but not solid. Since zinc is mentioned as part of the half-cell reaction, it can be an electrode, but platinum would not serve as a reactive electrode in this scenario.

Use the Following to Answer Questions 55-58