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2 years ago

What is the standard electrode potential for a galvanic cell constructed in the appropriate way from these two half-cells?

Chemistry

2 answers:

____ [38]2 years ago

5 0

Cell

2.115

Cathode

Anode

Explanation:

Look up the reduction potential for each cell in question on a table of standard electrode potential like this one from Chemistry LibreTexts. [1]

(

)

−

→

(

)

−

2.372

(

)

−

→

(

)

−

0.257

The standard reduction potential

resembles the electrode's strength as an oxidizing agent and equivalently its tendency to get reduced. The reduction potential of a Platinum-Hydrogen Electrode under standard conditions (

298

1.00

kPa

) is defined as

for reference. [2]

A cell with a high reduction potential indicates a strong oxidizing agent- vice versa for a cell with low reduction potentials.

Two half cells connected with an external circuit and a salt bridge make a galvanic cell; the half-cell with the higher

and thus higher likelihood to be reduced will experience reduction and act as the cathode, whereas the half-cell with a lower

will experience oxidation and act the anode.

(

)

(

)

Therefore in this galvanic cell, the

half-cell will experience reduction and act as the cathode and the

the anode.

The standard cell potential of a galvanic cell equals the standard reduction potential of the cathode minus that of the anode. That is:

cell

(

Cathode

)

−

(

Anode

)

cell

−

0.257

−

(

−

2.372

)

cell

2.115

Indicating that connecting the two cells will generate a potential difference of

2.115

across the two cells.

Ahat [919]2 years ago

5 0

The standard electrode potential for a galvanic cell constructed in the appropriate way from these two half-cells is,

EθCell=+2.115lV

Cathode Mg2+/Mg

Anode Ni2+/Ni

What is a galvanic cell ?

A galvanic cell or voltaic cell is an electrochemical device that transforms the chemical energy of spontaneous redox reactions into electrical energy.
electrical cell A voltaic cell is an electrochemical device that produces electricity through chemical processes.
Use a table of standard electrode potential, such as this one from Chemistry LibreTexts, to look up the reduction potential for each of the questioned cells.

Mg2+(aq)+2le−→Mg(s)−Eθ=−2.372lV

Ni2+(aq)+2le−→Ni(s)−Eθ=−0.257lV

A galvanic cell's standard cell potential is equal to the cathode's standard reduction potential less the anode's standard reduction potential. Which is:

Eθcell=Eθ(Cathode)−Eθ(Anode)

=−0.257−(−2.372)

=+2.115

The standard electrode potential for a galvanic cell constructed in the appropriate way from these two half-cells is,

EθCell=+2.115lV

Cathode Mg2+/Mg

Anode Ni2+/Ni

Learn more about Galvanic cell here:

brainly.com/question/23542257

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3 years ago

A student dissolved 5.00 g of Co(NO3)2 in enough water to make 100. mL of stock solution. He took 4.00 mL of the stock solution

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Answer:

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Explanation:

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6 0

3 years ago

In redox half-reactions, a more positive standard reduction potential means I. the oxidized form has a higher affinity for elect

qwelly [4]

Answer:

The 1st and 4th options are correct

I.the oxidized form has a higher affinity for electrons

IV. the greater the tendency for the oxidized form to accept electrons

Explanation:

Half reaction can be described as the oxidation or reduction reaction in a redox reaction.it is In the redox rection there is a change in the oxidation states of Chemical species involved. the oxidized form in the redox has a higher affinity for electrons and the greater the tendency for the oxidized form to accept electrons.

Standard reduction potential which is also referred to as standard cell potential can be described as the potential difference that exist between cathode and anode of the cell. In the standard reduction potential most times the species will be reduced which is usually analysed in a reduction half reaction.

(Standard Hydrogen Electrode) is utilized when determining the Standard reduction or potentials of a chemical specie. this is because of Hydrogen having zero reduction and oxidation potentials, as a result of this a measured potential of any species is compared with that of Hydrogen, the difference helps to know the potential reduction of that particular specie.

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