Question

Question 17
in an operating electrochemical cell the function of
a salt bridge is to...
O allow a non-spontaneous reaction to occurs
allow hydrolysis to occurs
Opermit the migration of ions within the cell
O transfer electrons from the cathode to the anode
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Answer 1

Answer:

A salt bridge, in electrochemistry, is a laboratory device used to connect the oxidation and reduction half cells of a galvanic cell(voltaic cell), a type of elctrochemical cell. It maintains electrical neutrality within the internal circuit, preventing the cell from rapidly running its reaction to equilibrium. If no salt bridge were present, the solution in one half cell would accumulate negative charge and the solution in the other half cell would accumulate positive charge as the reaction proceeded, quickly preventing further reaction, and hence production of electricity.

Salt bridge keeps the solutions in two half-cells electrically neutral. It prevents transference or diffusion of the ions from one half-cell to the other.

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