- A group of students performed electrolysis of the copper sulfate solution by using copper electrodes and recorded the results in the following table. Experiment (amp.) T(s) Mass of cathode before electrolysise (1) 2 180 1.24 (2) 4 180 1.2 (3) 360 1.34 (4) 8 90 1.51 Study it well and then answer the following: - The mass of cathode after electrolysis in experiment (4) equal. (a) 1.75 g (b) 1.58 g (C) 1.44 g (d) 1.36 g
- A group of students performed electrolysis of the copper sulfate solution by using copper electrodes and recorded the results in the following table. Experiment (amp.) T(s) Mass of cathode before electrolysise (1) 2 180 1.24 (2) 4 180 1.2 (3) 360 1.34 (4) 8 90 1.51 Study it well and then answer the following: - The mass of cathode after electrolysis in experiment (4) equal. (a) 1.75 g (b) 1.58 g (C) 1.44 g (d) 1.36 g
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:- A group of students performed
electrolysis of the copper sulfate
solution
by using copper
electrodes and recorded the
results in the following table.
Experiment (amp.) T(s) Mass of
cathode
before
electrolysise
(1)
180
1.24
(2)
4 180
1.2
(3)
2
360
1.34
(4)
8
90
1.51
Study it well and then answer
the following:
- The mass of cathode after
electrolysis in experiment (4)
equal.
.......
(a) 1.75 g
(b) 1.58 g
(C) 1.44 g
(d) 1.36 g
a
II
2.
Transcribed Image Text:- In experiment number (2) , if the
mass of anode before electrolysis
equal 1.45 g,
then the mass of cathode after
electrolysis equal
(a) 1.21g
(Б) 1.69 g
(C) 1.45 g
(d) 1.36 g
a
b
d
- The blue color of copper sulphate
solution in the previous
experiments .
(a) remains constant
(b) Decreases
II
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