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Preparing for your ACS examination in general chemistry
98th Edition
ISBN: 9780970804204
Author: Lucy T Eubanks
Publisher: ACS DIVCHED EXAMINATIONS INST.
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Question
Chapter DY, Problem 7PQ
Interpretation Introduction
Interpretation:
The half-life for the first order conversion of cyclobutane to ethylene, C4H8(g)→2C2H4(g) is 22.7s at a particular temperature. Then the time in seconds that are needed for the partial pressure of cyclobutane to decrease from 100 mm Hg to 10 mm Hg has to be calculated.
Concept Introduction:
Half-life is given by the equation,
t1/2=0.693kk-rate constant
Equation relating the rate constant and partial pressure is:
ln[P]t=-kt+ln[P]o[P]t=partial pressure at time 't' [P]o=initial pressure
Expert Solution & Answer
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Students have asked these similar questions
From the given compound, choose the proton that best fits each given description.
a
CH2
CH 2
Cl
b
с
CH2
F
Most shielded:
(Choose one)
Least shielded:
(Choose one)
Highest chemical shift:
(Choose one)
Lowest chemical shift:
(Choose one)
×
Consider this molecule:
How many H atoms are in this molecule?
How many different signals could be found in its 1H NMR spectrum?
Note: A multiplet is considered one signal.
For each of the given mass spectrum data, identify whether the compound contains chlorine, bromine, or neither.
Compound
m/z of M* peak
m/z of M
+ 2 peak
ratio of M+ : M
+ 2 peak
Which element is present?
A
122
no M
+ 2 peak
not applicable
(Choose one)
B
78
80
3:1
(Choose one)
C
227
229
1:1
(Choose one)
Chapter DY Solutions
Preparing for your ACS examination in general chemistry
Ch. DY - Prob. 1PQCh. DY - Prob. 2PQCh. DY - Prob. 3PQCh. DY - Prob. 4PQCh. DY - Prob. 5PQCh. DY - Prob. 6PQCh. DY - Prob. 7PQCh. DY - Prob. 8PQCh. DY - Prob. 9PQCh. DY - Prob. 10PQ
Ch. DY - Prob. 11PQCh. DY - Prob. 12PQCh. DY - Prob. 13PQCh. DY - Prob. 14PQCh. DY - Prob. 15PQCh. DY - Prob. 16PQCh. DY - Prob. 17PQCh. DY - Prob. 18PQCh. DY - Prob. 19PQCh. DY - Prob. 20PQCh. DY - Prob. 21PQCh. DY - Prob. 22PQCh. DY - Prob. 23PQCh. DY - Prob. 24PQCh. DY - Prob. 25PQCh. DY - Prob. 26PQCh. DY - Prob. 27PQCh. DY - Prob. 28PQCh. DY - Prob. 29PQCh. DY - Prob. 30PQ
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