Question

What additions must you make to the cell for it to generate a standard emf?

Check all that apply.

• We should add enough salt containing B2+ into the glass containing the electrode B(s) to produce a 1 M B2+ solution.
• We should apply the initial emf to the electrodes.
• We should add enough salt containing A2+ into the glass containing the electrode A(s) to produce a 1 M A2+ solution..
• We should add enough salt containing A2+ into the glass containing the electrode B(s) to produce a 1 M A2+ solution..
• We should add enough salt containing B2+ into the glass containing the electrode A(s) to produce a 1 M B2+ solution.
• We should add the salt brige.

Answer 1

To generate a standard EMF following conditions are required We should add enough salt containing B2 into the glass containing the electrode B(s) to produce a 1M B solution. Explanation: Salt should be present in its solution for the reduction or oxidation process. We should add enough salt containing A2 into the glass containing the electrode A(s) to produce a 1 M A2 solution. Explanation: Salt should be present in its solution for the reduction or oxidation process. We should add the salt bridge. Explanation: A salt bridge is very important for the maintain the flow of electron across the cell. Without a salt bridge, cell is incomplete and wont conduct electricity Hence, the given additions are required to generate the standard EMF in a cell.