For the reaction 2Co3+(aq)+2Cl−(aq)→2Co2+(aq)+Cl2(g) . E∘=0.483 V what is the cell potential at 25 ∘C if the concentrations are [Co3+]= 0.859 M , [Co2+]= 0.413 M , and [Cl−]= 0.439 M , and the pressure of Cl2 is PCl2= 5.10 atm ?

0.46V

Explanation:

This problem requires us to find the cell potential under conditions other than standard conditions. The cell potential for various systems under standard conditions are easily obtained from reduction potential tables. However, under nonstandard conditions, the cell potential is obtained from Nernst equation provided the relative concentration of individual species and the standard cell potential is supplied.

Nernst equation was applied in the detailed solution attached

the answer is   c.) 1575 j.

explanation:

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

            and  

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.