Question
In the everyday batteries used in flashlights, toys, and so forth, no salt bridge is evident. What is used in these cells to separate the anode and cathode compartments?
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In everyday batteries, such as alkaline batteries used in flashlights and toys, a porous separator is used to separate the anode and cathode compartments. Show more…
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In the everyday batteries used for flashlights, toys, etc., no salt bridge is evident. what is used in these cells to separate the anode and cathode compartments?
The purpose of the salt bridge in an electrochemical cell is to maintain electrical neutrality in the half-cells via migration of ions, provide a source of ions to react at the anode and cathode, provide oxygen to facilitate oxidation at the anode, and provide a means for electrons to travel from the anode to the cathode and from the cathode to the anode.
Shown here is a galvanic cell connected to an electrolytic cell. Label the electrodes (anodes and cathodes) and show the movement of electrons along the wires and cations and anions in solution. For simplicity, the salt bridge is not shown for the galvanic cell.
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