Bundle: Chemistry for Today: General, Organic, and Biochemistry, Loose-Leaf Version, 9th + LMS Integrated OWLv2, 4 terms (24 months) Printed Access Card
9th Edition
ISBN: 9781337598255
Author: Spencer L. Seager
Publisher: Cengage Learning
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Chapter 15, Problem 15.9E
Interpretation Introduction
Interpretation:
The classes of organic compounds, which have particularly unpleasant odors are to be identified.
Concept introduction:
The atoms present in most of the organic compounds is
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Using the conditions of spontaneity to deduce the signs of AH and AS
Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy AH and reaction entropy
AS.
Note: if you have not been given enough information to decide a sign, select the "unknown" option.
reaction
observations
conclusions
A
This reaction is always spontaneous, but
proceeds slower at temperatures above
120. °C.
ΔΗ is
(pick one)
AS is
(pick one)
ΔΗ is
(pick one)
B
This reaction is spontaneous except above
117. °C.
AS is
(pick one)
ΔΗ is
(pick one)
This reaction is slower below 20. °C than
C
above.
AS is
|(pick one)
?
18
Ar
1
Calculating the pH at equivalence of a titration
Try Again
Your answer is incorrect.
0/5
a
A chemist titrates 70.0 mL of a 0.7089 M hydrocyanic acid (HCN) solution with 0.4574M KOH solution at 25 °C. Calculate the pH at equivalence. The pK of
hydrocyanic acid is 9.21.
Round your answer to 2 decimal places.
Note for advanced students: you may assume the total volume of the solution equals the initial volume plus the volume of KOH solution added.
pH
=
11.43]
G
00.
18
Ar
B•
Chapter 15 Solutions
Bundle: Chemistry for Today: General, Organic, and Biochemistry, Loose-Leaf Version, 9th + LMS Integrated OWLv2, 4 terms (24 months) Printed Access Card
Ch. 15 - Prob. 15.1ECh. 15 - Prob. 15.2ECh. 15 - Prob. 15.3ECh. 15 - What carboxylic acid is present in sour milk and...Ch. 15 - Write the correct IUPAC name for each of the...Ch. 15 - Write the correct IUPAC name for each of the...Ch. 15 - Prob. 15.7ECh. 15 - Prob. 15.8ECh. 15 - Prob. 15.9ECh. 15 - Prob. 15.10E
Ch. 15 - Prob. 15.11ECh. 15 - Prob. 15.12ECh. 15 - Prob. 15.13ECh. 15 - Caproic acid, a six-carbon acid, has a solubility...Ch. 15 - Why are acetic acid, sodium acetate, and sodium...Ch. 15 - List the following compounds in order of...Ch. 15 - Prob. 15.17ECh. 15 - Prob. 15.18ECh. 15 - Prob. 15.19ECh. 15 - Prob. 15.20ECh. 15 - Write an equation to illustrate the equilibrium...Ch. 15 - Prob. 15.22ECh. 15 - Complete each of the following reactions: a. b.Ch. 15 - Prob. 15.24ECh. 15 - Write a balanced reaction for the reaction of...Ch. 15 - Prob. 15.26ECh. 15 - Give the IUPAC name for each of the following: a....Ch. 15 - Prob. 15.28ECh. 15 - Prob. 15.29ECh. 15 - Prob. 15.30ECh. 15 - Prob. 15.31ECh. 15 - Give the name of a carboxylic acid or carboxylate...Ch. 15 - Prob. 15.33ECh. 15 - Prob. 15.34ECh. 15 - Complete the following reactions: a. b. c.Ch. 15 - Prob. 15.36ECh. 15 - Using the alcohol CH3CH2OH, show three different...Ch. 15 - Prob. 15.38ECh. 15 - Prob. 15.39ECh. 15 - Prob. 15.40ECh. 15 - Prob. 15.41ECh. 15 - Prob. 15.42ECh. 15 - Prob. 15.43ECh. 15 - Prob. 15.44ECh. 15 - Give the IUPAC name for each of the following: a....Ch. 15 - Prob. 15.46ECh. 15 - Prob. 15.47ECh. 15 - Prob. 15.48ECh. 15 - Prob. 15.49ECh. 15 - Prob. 15.50ECh. 15 - Prob. 15.51ECh. 15 - Prob. 15.52ECh. 15 - Complete the following reactions: a. b.Ch. 15 - Prob. 15.54ECh. 15 - Prob. 15.55ECh. 15 - Dihydroxyacetone reacts with phosphoric acid to...Ch. 15 - Prob. 15.57ECh. 15 - Prob. 15.58ECh. 15 - Prob. 15.59ECh. 15 - Prob. 15.60ECh. 15 - How many mL of a 0.100M NaOH solution would be...Ch. 15 - Prob. 15.62ECh. 15 - Prob. 15.63ECh. 15 - Prob. 15.64ECh. 15 - Prob. 15.65ECh. 15 - Prob. 15.66ECh. 15 - Prob. 15.67ECh. 15 - Why is it safe for us to consume foods like...Ch. 15 - Prob. 15.69ECh. 15 - Prob. 15.70ECh. 15 - Prob. 15.71ECh. 15 - Prob. 15.72ECh. 15 - Identify the functional group designated by each...Ch. 15 - Prob. 15.74ECh. 15 - Fats belong to the class of organic compounds...
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- Using the conditions of spontaneity to deduce the signs of AH and AS Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy AH and reaction entropy AS. Note: if you have not been given enough information to decide a sign, select the "unknown" option. reaction observations conclusions A The reverse of this reaction is always spontaneous but proceeds faster at temperatures above -48. °C. ΔΗ is (pick one) ✓ AS is (pick one) B This reaction is spontaneous except below 114. °C but proceeds at a slower rate below 135. °C. ΔΗ is (pick one) AS is (pick one) ΔΗ is C This reaction is exothermic and proceeds faster at temperatures above -43. °C. (pick one) AS is (pick one) v Х 5 ? 18 Ararrow_forwardion. A student proposes the following Lewis structure for the perchlorate (CIO) io : :0: : Cl : - - : :0: ك Assign a formal charge to each atom in the student's Lewis structure. atom central O formal charge ☐ top O ☐ right O ☐ bottom O ☐ Cl ☐arrow_forwardDecide whether these proposed Lewis structures are reasonable. proposed Lewis structure Yes. Is the proposed Lewis structure reasonable? Cl- : 2: :Z: :Z: N—N : 0: C C1: O CO No, it has the wrong number of valence electrons. The correct number is: ☐ No, it has the right number of valence electrons but doesn't satisfy the octet rule. The symbols of the problem atoms are:* ☐ Yes. No, it has the wrong number of valence electrons. The correct number is: ☐ No, it has the right number of valence electrons but doesn't satisfy the octet rule. The symbols of the problem atoms are:* | Yes. No, it has the wrong number of valence electrons. The correct number is: No, it has the right number of valence electrons but doesn't satisfy the octet rule. The symbols of the problem atoms are:* | If two or more atoms of the same element don't satisfy the octet rule, just enter the chemical symbol as many times as necessary. For example, if two oxygen atoms don't satisfy the octet rule, enter "0,0". ☑arrow_forward
- Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy AH and reaction entropy AS. Note: if you have not been given enough information to decide a sign, select the "unknown" option. reaction observations conclusions ΔΗ is (pick one) A This reaction is faster above 103. °C than below. AS is (pick one) ΔΗ is (pick one) B This reaction is spontaneous only above -9. °C. AS is (pick one) ΔΗ is (pick one) C The reverse of this reaction is always spontaneous. AS is (pick one) 18 Ararrow_forwardUse the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy AH and reaction entropy AS. Note: if you have not been given enough information to decide a sign, select the "unknown" option. reaction observations conclusions A The reverse of this reaction is always spontaneous but proceeds slower at temperatures below 41. °C. ΔΗ is (pick one) AS is (pick one) ΔΗ is (pick one) B This reaction is spontaneous except above 94. °C. AS is (pick one) This reaction is always spontaneous, but ΔΗ is (pick one) C proceeds slower at temperatures below −14. °C. AS is (pick one) Х 00. 18 Ar 무ㅎ B 1 1arrow_forwardDraw the product of the reaction shown below. Ignore inorganic byproducts. + H CH3CH2OH HCI Drawingarrow_forward
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