`Sn(s) | Sn^(2+)(aq) || Cu^(2+)(aq) | Cu(s)`
For the voltaic cell represented above, which change will increase the voltages?

Zn(s) + Cu^(2+)(aq) rarr Zn^(2+)(aq) + Cu(s) The cell representation for the above redox reaction is

E.M.F. of Ni(s) | Ni^(2+) (aq)||Cu^(2+) (aq)| Cu(s) cell can be increased by

E.M.F. of Ni(s) (ni^(2+) (aq)||Cu^(2+) (aq)| Cu(s) cell can be increased by

Ni(s) + Cu^(2+)(aq) rightarrow Ni^(2+)(aq) + Cu(s) The voltaic cell based on this reaction has a voltage of 0.59 V under standard conditions. Which of these changes will produce a higher voltage? (P) Increasing [Cu^(2+)] (Q) Increasing the size of the Ni(s) electrode.

A voltaic cell is constructed with the overall reaction : Sn^(2+)(aq) + 2Ag^(+)(aq) rightarrow Sn^(4+)(aq) + 2Ag(s) . Which change will increase the voltage of the cell?

For the voltaic cell respresents below Ni(s) | Ni^(2+)(aq) || Ag^(+)(aq) | Ag(s) Which change will increase the cell potential?

Consider a voltaic cell in which the reaction below occurs in two half-cells connected by a salt bridge and an external circuit. 2Cr(s) + 3Sn^(2+)(aq) rightarrow 3Sn(s) + 2Cr^(3+)(aq) E^(@) = 0.603V . Which change will cause the voltage to increase?