Chemistry Atoms First2e
2nd Edition
ISBN: 9781947172647
Author: OpenStax
Publisher: OpenStax College
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Textbook Question
Chapter 8, Problem 83E
Starting with the definition of rate of effusion and Graham’s finding relating rate and molar mass, show how to derive the Graham’s law equation, relating the relative rates of effusion for two gases to their molecular masses.
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Using reaction free energy to predict equilibrium composition
Consider the following equilibrium:
2NOCI (g) 2NO (g) + Cl2 (g) AGº =41. kJ
Now suppose a reaction vessel is filled with 4.50 atm of nitrosyl chloride (NOCI) and 6.38 atm of chlorine (C12) at 212. °C. Answer the following questions
about this system:
?
rise
Under these conditions, will the pressure of NOCI tend to rise or fall?
x10
fall
Is it possible to reverse this tendency by adding NO?
In other words, if you said the pressure of NOCI will tend to rise, can that
be changed to a tendency to fall by adding NO? Similarly, if you said the
pressure of NOCI will tend to fall, can that be changed to a tendency to
rise by adding NO?
yes
no
If you said the tendency can be reversed in the second question, calculate
the minimum pressure of NO needed to reverse it.
Round your answer to 2 significant digits.
0.035 atm
✓
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00.
18
Ar
Highlight each glycosidic bond in the molecule below. Then answer the questions in the table under the drawing area.
HO-
HO-
-0
OH
OH
HO
NG
HO-
HO-
OH
OH
OH
OH
NG
OH
€
+
Suppose the molecule in the drawing area below were reacted with H₂ over a platinum catalyst. Edit the molecule to show what would happen to it. That is, turn
it into the product of the reaction.
Also, write the name of the product molecule under the drawing area.
Name: ☐
H
C=0
X
H-
OH
HO-
H
HO-
-H
CH₂OH
×
Chapter 8 Solutions
Chemistry Atoms First2e
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A sample of carbon monoxide was collected over...Ch. 8 - In an experiment in a general chemistry...Ch. 8 - Joseph Priestley first prepared pure oxygen by...Ch. 8 - Cavendish prepared hydrogen in 176G by the novel...Ch. 8 - The chlorofluorocarbon CCl2F2 can be recycled into...Ch. 8 - Automobile air bags are inflated with nitrogen...Ch. 8 - Lime, CaO, is produced by heating calcium...Ch. 8 - Before small batteries were available, carbide...Ch. 8 - Calculate the volume of oxygen required to burn...Ch. 8 - What volume of O2 at STP is required to oxidize...Ch. 8 - Consider the following questions: (a) What is the...Ch. 8 - Methanol, CH3OH, is produced industrially by the...Ch. 8 - What volume of oxygen a 423.0 K and a pressure of...Ch. 8 - A 230-L sample of a colorless gas at STP...Ch. 8 - Ethanol, C2H5OH, is produced industrially from...Ch. 8 - One molecule of hemoglobin will combine with four...Ch. 8 - A sample of a compound of xenon and fluorine was...Ch. 8 - One method of analyzing amino acids is the van...Ch. 8 - A balloon filled with helium gas takes 6 hours to...Ch. 8 - Explain why the numbers of molecules are not...Ch. 8 - Starting with the definition of rate of effusion...Ch. 8 - Heavy water, D2O (molar mass = 20.03 g mol-1). can...Ch. 8 - Which of the following gases diffuse more slowly...Ch. 8 - During the discussion of gaseous diffusion for...Ch. 8 - Calculate the relative rate of diffusion of...Ch. 8 - A gas of unknown identity diffuses at a rate of...Ch. 8 - When two cotton plugs. one moistened with ammonia...Ch. 8 - Using the postulates of the kinetic molecular...Ch. 8 - Can the speed of a given molecule in a gas double...Ch. 8 - Describe what happens o the average kinetic energy...Ch. 8 - The distribution of molecular velocities in a...Ch. 8 - What is the ratio of the average kinetic energy of...Ch. 8 - A 1-L sample of CO initially at STP is heated to...Ch. 8 - The root mean square speed of H2, molecules at 25...Ch. 8 - Answer the following questions: (a) Is the...Ch. 8 - Show that the ratio of the rate of diffusion of...Ch. 8 - 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