Respuesta :
Answer: The [tex]E^o_{cell}\text{ and }K_{eq}[/tex] of the reaction is 0.62 V and [tex]9.55\times 10^{20}[/tex]
Explanation:
We are given:
Oxidation half reaction: [tex]Co(s)\rightarrow Co^{2+}(aq.)+2e^-[/tex] [tex]E^o_{Co^{2+}/Co}=-0.28V[/tex]
Reduction half reaction: [tex]Cu^{2+}(aq.)+2e^-\rightarrow Cu(s)[/tex] [tex]E^o_{Cu^{2+}/Cu}=0.34V[/tex]
Oxidation reaction occurs at anode and reduction reaction occurs at cathode.
To calculate the [tex]E^o_{cell}[/tex] of the reaction, we use the equation:
[tex]E^o_{cell}=E^o_{cathode}-E^o_{anode}[/tex]
Putting values in above equation, we get:
[tex]E^o_{cell}=0.34-(-0.28)=0.62V[/tex]
To calculate the [tex]K_{eq}[/tex] of the reaction, we use Nernst equation, which is:
[tex]E^o_{cell}=\frac{0.0591}{n}\log K_{eq}[/tex]
where,
[tex]E^o_{cell}[/tex] = standard electrode potential = 0.62 V
n = number of electrons transferred = 2
Putting values in above equation, we get:
[tex]0.62=\frac{0.0591}{2}\log K_{eq}\\\\K_{eq}=9.55\times 10^{20}[/tex]
Hence, the [tex]E^o_{cell}\text{ and }K_{eq}[/tex] of the reaction is 0.62 V and [tex]9.55\times 10^{20}[/tex]
The branch of chemistry which deals with the making of electricity with the help of chemical reactions is called electrochemistry.
The correct answer is 0.62 [tex]9.55*10^{20[/tex].
REDOX REACTION
- Redox is a type of chemical reaction in which the oxidation states of atoms are changed.
- Redox reactions are characterized by the actual or formal transfer of electrons between chemical species
The oxidation potential is as follows:- [tex]E^o_{Co^{2+}/Co = -0.28\\ [/tex]
The reduction potential is as follows:- [tex]E^o_{Cu^{2+}/Cu=0.34[/tex]
The potential of the cell is as follows:-
[tex]E^o_cell =0.34-(-0.28) =0.62V[/tex].
Let's use the Nerst equation to find the keq?
[tex]E^o_{cell} = \frac{0.0591}{n}logK_{eq}[/tex],
Placed all the values to the equation.
[tex]0.62= \frac{0.0591}{2}logK_{eq}\\ \\ K_{eq} =9.55*10^{20}[/tex]
Hence, the correct answer is mentioned above.
For more information about the question, refer to the link:-
https://brainly.com/question/9552459
