Question

In: Chemistry

A voltaic cell is assembled under standard conditions based on the following reaction : Ni(s) +...

A voltaic cell is assembled under standard conditions based on the following reaction :

Ni(s) + 2 Ag+(aq) → Ni+2(aq) + 2 Ag(s)

Indicate which statements, if any, about this voltaic cell are true by checking the box in front of each true statment. -

The voltaic cell will always produce a positive potential. If the [Ni2+] is doubled while [Ag+] remains standard, the intial potential produced by the voltaic cell will double.

If the [Ag+] is doubled while [Ni+2] remains standard, the intial potential produced by the voltaic cell will double.

If [Ni2+] less than 1.0 M is used while [Ag+] remains standard , the initial potential will be greater than the standard potential for the voltaic cell.

If [Ag+] less than 1.0 M is used while [Ni+2] remains standard , the initial potential will be greater than the standard potential for the voltaic cell.

The potential produced by the voltaic cell may be affected by temperature.

The value of K for the voltaic cell reaction is greater than 1.

The value of K for the voltaic cell reaction is less than 1.

Solutions

Expert Solution

True statments :

The voltaic cell will always produce a positive potential

If [Ni2+] less than 1.0 M is used while [Ag+] remains standard , the initial potential will be greater than the standard potential for the voltaic cell.

The potential produced by the voltaic cell may be affected by temperature.

The value of K for the voltaic cell reaction is greater than 1.

false statements :

If the [Ni2+] is doubled while [Ag+] remains standard, the intial potential produced by the voltaic cell will double.

If the [Ag+] is doubled while [Ni+2] remains standard, the intial potential produced by the voltaic cell will double.

If [Ag+] less than 1.0 M is used while [Ni+2] remains standard , the initial potential will be greater than the standard potential for the voltaic cell.

The value of K for the voltaic cell reaction is less than 1.


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