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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'Show all working explaining detailly each step
Answer Qc(i), (ii) (iii) and (iv)
![Deine ihe folowing terme nd giye one suitable example in each case.
Catalyst:
a)
Activation energy:
Hydrogenation
iv)
Endothermic reaction
An experiment was carried out to investigate the effect of varying concentration of
hydrachloric acid on the rate of the reaction of the acid with 1g of iron fillings. The acid was
present in excess The reaction times (1) required for the evolution of 15 cm of hydrogen
(measured al one atmosphere and 300K were recorded and are shown in the table below.
b)
Time, (1/second.
160
Concentration of HCl moll
0.25
0.35
0.50
0,70
1.00
80
40
20
10
Suggest why a large excess of hydrochloride acid was required.
Consider the data in the table. Give a relationship between the time, t. and the
concentration of the hydrochloric acid.
What is the order of the reaction with respect to hydrochioric acid.
iv)
The following are two possibilities for the rate equations, where n is the order of the
reaction.
Rate = K[H'T"
Rate = K[CI]"
How would you determine experimentally which of these is the correct expression.
.....](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5a34b30f-b24b-4f7d-99ce-077847d6f8ed%2Fc47a7c9a-2761-4105-bb82-5dea06fe1bbd%2Fyzsg05_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Deine ihe folowing terme nd giye one suitable example in each case.
Catalyst:
a)
Activation energy:
Hydrogenation
iv)
Endothermic reaction
An experiment was carried out to investigate the effect of varying concentration of
hydrachloric acid on the rate of the reaction of the acid with 1g of iron fillings. The acid was
present in excess The reaction times (1) required for the evolution of 15 cm of hydrogen
(measured al one atmosphere and 300K were recorded and are shown in the table below.
b)
Time, (1/second.
160
Concentration of HCl moll
0.25
0.35
0.50
0,70
1.00
80
40
20
10
Suggest why a large excess of hydrochloride acid was required.
Consider the data in the table. Give a relationship between the time, t. and the
concentration of the hydrochloric acid.
What is the order of the reaction with respect to hydrochioric acid.
iv)
The following are two possibilities for the rate equations, where n is the order of the
reaction.
Rate = K[H'T"
Rate = K[CI]"
How would you determine experimentally which of these is the correct expression.
.....
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