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- Equilibrium constants
Key equations
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P =
MRT
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K
P =
K
c (
RT )
Δ
n
Chemistry end of chapter exercises
Explain why there may be an infinite number of values for the reaction quotient of a reaction at a given temperature but there can be only one value for the equilibrium constant at that temperature.
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Explain why an equilibrium between Br
2 (
l ) and Br
2 (
g ) would not be established if the container were not a closed vessel shown in
[link] .
Equilibrium cannot be established between the liquid and the gas phase if the top is removed from the bottle because the system is not closed; one of the components of the equilibrium, the Br
2 vapor, would escape from the bottle until all liquid disappeared. Thus, more liquid would evaporate than can condense back from the gas phase to the liquid phase.
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If you observe the following reaction at equilibrium, is it possible to tell whether the reaction started with pure NO
2 or with pure N
2 O
4 ?
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Among the solubility rules previously discussed is the statement: All chlorides are soluble except Hg
2 Cl
2 , AgCl, PbCl
2 , and CuCl.
(a) Write the expression for the equilibrium constant for the reaction represented by the equation
Is
K
c >1,<1, or ≈ 1? Explain your answer.
(b) Write the expression for the equilibrium constant for the reaction represented by the equation
Is
K
c >1,<1, or ≈ 1? Explain your answer.
(a)
K
c = [Ag
+ ][Cl
− ]<1. AgCl is insoluble; thus, the concentrations of ions are much less than 1
M ; (b)
>1 because PbCl
2 is insoluble and formation of the solid will reduce the concentration of ions to a low level (<1
M ).
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Among the solubility rules previously discussed is the statement: Carbonates, phosphates, borates, and arsenates—except those of the ammonium ion and the alkali metals—are insoluble.
(a) Write the expression for the equilibrium constant for the reaction represented by the equation
Is
K
c >1,<1, or ≈ 1? Explain your answer.
(b) Write the expression for the equilibrium constant for the reaction represented by the equation
Is
K
c >1,<1, or ≈ 1? Explain your answer.
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Benzene is one of the compounds used as octane enhancers in unleaded gasoline. It is manufactured by the catalytic conversion of acetylene to benzene:
Which value of
K
c would make this reaction most useful commercially?
K
c ≈ 0.01,
K
c ≈ 1, or
K
c ≈ 10. Explain your answer.
Since
a value of
K
c ≈ 10 means that C
6 H
6 predominates over C
2 H
2 . In such a case, the reaction would be commercially feasible if the rate to equilibrium is suitable.
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Show that the complete chemical equation, the total ionic equation, and the net ionic equation for the reaction represented by the equation
give the same expression for the reaction quotient. KI
3 is composed of the ions K
+ and
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For a titration to be effective, the reaction must be rapid and the yield of the reaction must essentially be 100%. Is
K
c >1,<1, or ≈ 1 for a titration reaction?
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Questions & Answers
Discuss the differences between taste and flavor, including how other sensory inputs contribute to our perception of flavor.
taste refers to your understanding of the flavor . while flavor one The other hand is refers to sort of just a blend things.
Faith
While taste primarily relies on our taste buds, flavor involves a complex interplay between taste and aroma
Kamara
which drugs can we use for ulcers
Omeprazole
Cimetidine / Tagament
For the complicated once ulcer - kit
Patrick
what is the function of lymphatic system
to drain extracellular fluid all over the body.
asegid
The lymphatic system plays several crucial roles in the human body, functioning as a key component of the immune system and contributing to the maintenance of fluid balance. Its main functions include:
1. Immune Response: The lymphatic system produces and transports lymphocytes, which are a type of
asegid
to transport fluids fats proteins and lymphocytes to the blood stream as lymph
Adama
Anatomy is the identification and description of the structures of living things
Kamara
what's the difference between anatomy and physiology
Anatomy is the study of the structure of the body, while physiology is the study of the function of the body. Anatomy looks at the body's organs and systems, while physiology looks at how those organs and systems work together to keep the body functioning.
AI-Robot
what is enzymes all about?
Enzymes are proteins that help speed up chemical reactions in our bodies. Enzymes are essential for digestion, liver function and much more. Too much or too little of a certain enzyme can cause health problems
Kamara
how does the stomach protect itself from the damaging effects of HCl
little girl okay how does the stomach protect itself from the damaging effect of HCL
Wulku
it is because of the enzyme that the stomach produce that help the stomach from the damaging effect of HCL
Kamara
function of digestive system
function of digestive
Ali
what is the normal body temperature
please why 37 degree selcius normal temperature
Mark
the normal temperature is 37°c or 98.6 °Fahrenheit is important for maintaining the homeostasis in the body
the body regular this temperature through the process called thermoregulation which involves brain skin muscle and other organ working together to maintain stable internal temperature
Stephanie
anaemia is the decrease in RBC count hemoglobin count and PVC count
Eniola
what is the pH of the vagina
how does Lysin attack pathogens
Diya
I information on anatomy position and digestive system and there enzyme
anatomy of the female external genitalia
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Source:
OpenStax, Chemistry. OpenStax CNX. May 20, 2015 Download for free at http://legacy.cnx.org/content/col11760/1.9
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