The salt bridge usually contains some simple salt that is inert under the condit

Question

The salt bridge usually contains some simple salt that is inert under the condition of the reactions. For example, KNOS is commonly used because neither K+ nor NO3- will under go a redox reaction in a typical cell. As electrons are removed from one container, NOS- ions flow out of the salt bridge into the container and compensate for the charge removed. From an electronics point of view we must have a complete path for current flow. One that originates at one electrode and ultimately returns to that electrode. The bridge serves this purpose. Although electrons do not flow in the bridge, charges in the form of cations and ions do flow. Using the data in Table I calculate the standard potentials of the following cells Using the Nernst Equation calculate the potential of the concentration cell made with 0.1 M Zn^2+/Zn and 0.01 M Zn^2+/Zn. Using data in Table I answer the following: Will Zn metal spontaneously plate onto a copper rod when the rod is placed in a solution of Zn^2+? Will the reverse reaction occur.

Explanation / Answer

The salt bridge usually contains some simple salt that is inert under the condit

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