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CHE 202 Chapter 19: Chapter 19 notes

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coppercod411
22 Oct 2017
School
TCNJ
Department
Chemistry
Course
CHE 202
Professor
Baker

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Document Summary

Balancing redox reactions: redox reaction, one in which there are changes in the oxidation states. Spontaneity of redox reactions under stp: ecell under other than standard-state conditions is determined from and the reaction quotient, q, using the nernst equation. Standard cell potential, e cell, is calculated by subtracting e red of the anode from e red of the cathode. Free-e(cid:374)ergy (cid:272)ha(cid:374)ge, g, is calculated as the product of the number of electrons transferred in a redox reaction, n, the faraday constant, f, and the cell potential, ecell. Standard free-e(cid:374)ergy (cid:272)ha(cid:374)ge, g , is calculated as the product of the number of electrons transferred in a redox reaction, n, the faraday constant, f, and the standard cell potential, e cell. Standard cell potential, e cell, is proportional to the natural log (ln) of the equilibrium constant, k. At 25 c, the relationship between e cell and k is simplified.

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Related Questions

A voltaic cell is constructed using the reaction

Ā 

(a) Write equations for the oxidation and reduction half-reactions.

(b) Which half-reaction occurs in the anode compartment, and which occurs in the cathode compartment?

(c) Complete the following sentences: Electrons in the external circuit flow from the ________ electrode to the ______ electrode. Negative ions move in the salt bridge from the ______ half-cell to the ______ half-cell. The half-reaction at the anode is ____, and that at the cathode is _____.

Ā 

A voltaic cell is constructed using the reaction

Ā 

a. Write equations for the oxidation and reduction half-reactions.Ā 

b. Which half-reaction occurs in the anode compartment and which occurs in the cathode compartment?

c. Complete the following sentences:Ā 

Electrons in the external circuit flow from the ____ electrode to the ___ electrode. Negative ions move in the salt bridge from the ___half-cell to the _half-cell. The half-reaction in the anode is __ and the half-reaction in the cathode is ___

A voltaic cell is constructed using the reaction

Ā 

Ā 

a. Write equations for the oxidation and reduction half-reactions.

b. which half-reaction occurs in the anode compartment and which half-reaction occurs in the cathode compartment

c.Ā Complete the following sentences: Electrons in the external circuit flow from the ___ electrode to the ___ electrode. Negative ions move in the salt bridge from the ___ half-cell to the ___ half-cell. The half-reaction at the anode is ___ and that at the cathode is ___.