12. Which substance would be expected to exhibit the greatest vapor pressure at 25°C?(A) CH3OCH3(В) С2H5ОН(С) CН3CH2CH2ОН(D) HOCH2CH2OH13.Ag"(aq) + 2 NH3(aq) Ag(NH3)2**(aq)For this reaction, K = 1.7 x 107 at 25°C. What is the value of AG° in kJ?(A) - 41.2(В) — 17.9(C) + 17.9(D) + 41.214.What is the sign of AG" and the value of K for anelectrochemical cell for which E -0.80 V?AGK(A)>1(В)+>1(C)+< I(D)< 115. The decomposition of ethane into two methyl radicals has a first order rate constant of5.5 x 10-4 sec1 at 700°C. What is the half-life for this decomposition in minutes?(A) 9.1(B) 15(C) 21(D) 30Silver ions are added to a solution with[Br]= [CH]= [CO,²]=[AsO,'] = 0.1 M.Which compound will precipitate at the lowest [Ag']?16.(A) AgBr(K, = 5.0 × 10-")(B) AgCl(K„ – 1.8 x 10-")(C) Ag,CO,(K„ - 8.1 x 10-)(D) Ag,AsO, (K„ = 1.0 × 10 ")

As you have asked multiple questions, we have answered your 1st question. If you want the answer to…

Answered: 12. Which substance would be expected…

12. Which substance would be expected to exhibit the greatest vapor pressure at 25°C? (A) CH3OCH3 (В) C2Н5ОН (C) CH3CH2CH2OH (D) HOCH2CH2OH

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter14: Chemical Equilibrium

Section: Chapter Questions

Problem 68P

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Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.

Question

12. Which substance would be expected to exhibit the greatest vapor pressure at 25°C?
(A) CH3OCH3
(В) С2H5ОН
(С) CН3CH2CH2ОН
(D) HOCH2CH2OH
13.
Ag"(aq) + 2 NH3(aq) Ag(NH3)2**(aq)
For this reaction, K = 1.7 x 107 at 25°C. What is the value of AG° in kJ?
(A) - 41.2
(В) — 17.9
(C) + 17.9
(D) + 41.2
14.
What is the sign of AG" and the value of K for an
electrochemical cell for which E -0.80 V?
AG
K
(A)
>1
(В)
+
>1
(C)
+
< I
(D)
< 1
15. The decomposition of ethane into two methyl radicals has a first order rate constant of
5.5 x 10-4 sec1 at 700°C. What is the half-life for this decomposition in minutes?
(A) 9.1
(B) 15
(C) 21
(D) 30
Silver ions are added to a solution with
[Br]= [CH]= [CO,²]=[AsO,'] = 0.1 M.
Which compound will precipitate at the lowest [Ag']?
16.
(A) AgBr
(K, = 5.0 × 10-")
(B) AgCl
(K„ – 1.8 x 10-")
(C) Ag,CO,
(K„ - 8.1 x 10-)
(D) Ag,AsO, (K„ = 1.0 × 10 ")

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