An experiment has to be described to identify the cathode and anode in a galvanic cell consisting of copper and zinc electrode. Concept Introduction: Galvanic cell is an electrochemical device in which electrical energy is derived from a chemical reaction . It has two half cells, oxidation half cell (anode) and reduction half cell (cathode). The two half cells are connected by a salt bridge. Redox reactions are the reactions in which both oxidation and reduction take place simultaneously. Oxidation is the removal electron from an atom or ion. Oxidation process increases the oxidation number. Reduction is the addition of electron to an atom or ion. Reduction process decreases the oxidation number. The electrochemical reaction in a Daniel cell is an example of redox reaction . Zn ( s ) + CuSO 4 ( aq ) → ZnSO 4 + Cu
An experiment has to be described to identify the cathode and anode in a galvanic cell consisting of copper and zinc electrode. Concept Introduction: Galvanic cell is an electrochemical device in which electrical energy is derived from a chemical reaction . It has two half cells, oxidation half cell (anode) and reduction half cell (cathode). The two half cells are connected by a salt bridge. Redox reactions are the reactions in which both oxidation and reduction take place simultaneously. Oxidation is the removal electron from an atom or ion. Oxidation process increases the oxidation number. Reduction is the addition of electron to an atom or ion. Reduction process decreases the oxidation number. The electrochemical reaction in a Daniel cell is an example of redox reaction . Zn ( s ) + CuSO 4 ( aq ) → ZnSO 4 + Cu
Solution Summary: The author describes the electrochemical reaction in a galvanic cell consisting of copper and zinc electrodes.
Definition Definition Chemical reactions involving both oxidation and reduction processes. During a redox reaction, electron transfer takes place in such a way that one chemical compound gets reduced and the other gets oxidized.
Chapter 18, Problem 18.85QP
Interpretation Introduction
Interpretation:
An experiment has to be described to identify the cathode and anode in a galvanic cell consisting of copper and zinc electrode.
Concept Introduction:
Galvanic cell is an electrochemical device in which electrical energy is derived from a chemical reaction. It has two half cells, oxidation half cell (anode) and reduction half cell (cathode). The two half cells are connected by a salt bridge.
Redox reactions are the reactions in which both oxidation and reduction take place simultaneously. Oxidation is the removal electron from an atom or ion. Oxidation process increases the oxidation number. Reduction is the addition of electron to an atom or ion. Reduction process decreases the oxidation number. The electrochemical reaction in a Daniel cell is an example of redox reaction.
1.
Answer the questions about the following reaction:
(a) Draw in the arrows that can be used make this reaction occur and draw in the product of substitution in this
reaction. Be sure to include any relevant stereochemistry in the product structure.
+
SK
F
Br
+
(b) In which solvent would this reaction proceed the fastest (Circle one)
Methanol
Acetone
(c) Imagine that you are working for a chemical company and it was your job to perform a similar reaction to the
one above, with the exception of the S atom in this reaction being replaced by an O atom. During the reaction, you
observe the formation of three separate molecules instead of the single molecule obtained above. What is the likeliest
other products that are formed? Draw them in the box provided.
3. For the reactions below, draw the arrows corresponding to the transformations and draw in the boxes the reactants
or products as indicated. Note: Part A should have arrows drawn going from the reactants to the middle structure
and the arrows on the middle structure that would yield the final structure. For part B, you will need to draw in
the reactant before being able to draw the arrows corresponding to product formation.
A.
B.
Rearrangement
ΘΗ
2. Draw the arrows required to make the following reactions occur. Please ensure your arrows point from exactly
where you want to exactly where you want. If it is unclear from where arrows start or where they end, only partial
credit will be given. Note: You may need to draw in lone pairs before drawing the arrows.
A.
B.
H-Br
人
C
Θ
CI
H
Cl
Θ
+
Br
O
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