A galvanic (voltaic) cell consists of an electrode composed of nickel in a 1.0 M nickel(II) ion solution and another electrode composed of copper in a 1.0 M copper(I) ion solution, connected by a salt bridge. Calculate the standard potential for this cell at 25 °C .

The standard potential of the cell is 0.77 V

Explanation:

We know that:

The substance having highest positive reduction potential will always get reduced and will undergo reduction reaction.

The half reaction follows:

Oxidation half reaction:

Reduction half reaction:       ( × 2)

To calculate the of the reaction, we use the equation:

Substance getting oxidized always act as anode and the one getting reduced always act as cathode.

Putting values in above equation follows:

Hence, the standard potential of the cell is 0.77 V

h let me think

in chemistry, adhesion and cohesion are attractive forces that exist between molecules. they hold the molecules together from each other. they are different in that adhesive force exists between molecules of different substance while cohesive force happens between molecules of same substance.

adhesion between water and glass causes water molecules at the edge of water and glass interface to climb up the wall in a narrow glass tube. this is called capillary action. cohesion is what gives glass its shape and causes water to form a droplet.