Answer:

Not used for constructing a Salt Bridge: CH3COOK

Explanation:

Salt Bridge is a device used in electrochemical cells to maintain electrical neutrality by allowing the flow of ions between the half-cells. It is made up of an inert electrolyte that is placed between the two half-cells. The solutions in the half-cells are connected by a salt bridge, allowing the movement of ions between the half-cells.

Various electrolytes can be used to construct a salt bridge, but CH3COOK is not one of them. This is because CH3COOK is a weak electrolyte and can dissociate only partially into ions. A salt bridge made up of CH3COOK will not be able to maintain electrical neutrality efficiently, as it will not provide enough ions to balance the charges.

The electrolytes used to construct a salt bridge should be strong electrolytes that can dissociate completely into ions. The most commonly used electrolytes for making salt bridges are KCl, NH4NO3, and KNO3. These electrolytes are strong electrolytes and can dissociate completely into ions, providing enough ions to maintain electrical neutrality.

In summary, CH3COOK is not used to construct a salt bridge as it is a weak electrolyte and cannot provide enough ions to maintain electrical neutrality. Strong electrolytes like KCl, NH4NO3, and KNO3 are commonly used for making salt bridges.

CH3COOK...