The Ohio State University

Chapter 1. Hayden-McNeil

Experiment 23

false
false
true
The Ohio State University
{Ca,Mg,Cu,Mn}
{+3.67,+3.17,881,991}
{+2.07,+1.57,882,992}
{-3.67,-3.27,883,993}
{-2.07,-1.57,884,994}
{+1.27,+0.77,885,995}
{+4.47,+3.97,886,996}
{0,1,2,3}
Ca, Mg, Cu, Mn[0]
+3.67, +3.17, 881, 991[0]
+2.07, +1.57, 882, 992[0]
-3.67, -3.27, 883, 993[0]
-2.07, -1.57, 884, 994[0]
+1.27, +0.77, 885, 995[0]
+4.47, +3.97, 886, 996[0]

Voltaic and Electrolytic Cells
Prelab Assignment

 

1.1 Question 1

The students are given the diagram shown above. The unknown metal X will randomly be shuffled to be one of the following X = Cu or Mn or Mg or Ca. They would also be shown the following table.

With this information available they would be asked to answer the following questions:

1.

At which reaction will oxidation occur?

A.
B.

Correct.
Incorrect.

2.

At which reaction will reduction occur?

A.
B.

Correct.
Incorrect.

3.

Which strip of metal acts as the anode?

A.
B.

Correct.
Incorrect.

4.

What half-reaction occurs at the anode?

A.
B.
C.
D.
E.

Correct.
Incorrect.

5.

Which strip of metal acts as the cathode?

A.
B.

Correct.
Incorrect.

6.

What half-reaction occurs at the cathode?

A.
B.
C.
D.
E.

Correct.
Incorrect.

7.

Which strip of metal gains mass as the reaction proceeds?

A.
B.

Correct.
Incorrect.

8.

In which direction do the electrons flow?

A.
B.

Correct.
Incorrect.

9.

Assuming both solutions are 1.0 M in concentration and T = 298 K, what voltage will you read at the multimeter?

A.
B.
C.
D.
E.
F.

Correct.
Incorrect.
 

1.2 Question 2

Sodium metal is produced by electrolysis of molten NaCl. Answer the following questions for this process.

10.

At which electrode is metallic sodium produced?

A.
B.

Correct.
Incorrect.

11.

What is produced at the other electrode?

A.
B.
C.
D.
E.

Correct.
Incorrect.

12.

How long would you have to pass a current of x A to produce 85 g of sodium metal?

A.
B.
C.
D.
E.

Correct.
Incorrect.

Activity results are being submitted...