General, Organic, & Biological Chemistry
3rd Edition
ISBN: 9780073511245
Author: Janice Gorzynski Smith Dr.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 18.6, Problem 18.17P
Name each ammonium salt.
a.
b.
c.
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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 18 Solutions
General, Organic, & Biological Chemistry
Ch. 18.1 - Prob. 18.1PCh. 18.1 - Prob. 18.2PCh. 18.1 - Prob. 18.3PCh. 18.1 - Prob. 18.4PCh. 18.2 - Prob. 18.5PCh. 18.2 - Prob. 18.6PCh. 18.2 - Prob. 18.7PCh. 18.3 - Prob. 18.8PCh. 18.4 - Decaffeinated coffee is produced by extracting the...Ch. 18.4 - Prob. 18.10P
Ch. 18.5 - Prob. 18.11PCh. 18.5 - Prob. 18.12PCh. 18.5 - Prob. 18.13PCh. 18.6 - Prob. 18.14PCh. 18.6 - Prob. 18.15PCh. 18.6 - Prob. 18.16PCh. 18.6 - Name each ammonium salt. a. ( CH3 NH3)+Cl b. [( CH...Ch. 18.6 - Prob. 18.18PCh. 18.6 - Prob. 18.19PCh. 18.7 - Prob. 18.20PCh. 18.7 - Prob. 18.21PCh. 18.8 - Prob. 18.22PCh. 18.8 - Prob. 18.23PCh. 18.8 - Prob. 18.24PCh. 18.9 - Prob. 18.25PCh. 18.9 - Prob. 18.26PCh. 18.9 - Prob. 18.27PCh. 18.10 - Prob. 18.28PCh. 18 - Prob. 18.29PCh. 18 - Prob. 18.30PCh. 18 - Prob. 18.31PCh. 18 - Prob. 18.32PCh. 18 - Prob. 18.33PCh. 18 - Prob. 18.34PCh. 18 - Prob. 18.35PCh. 18 - Prob. 18.36PCh. 18 - Prob. 18.37PCh. 18 - Prob. 18.38PCh. 18 - Give an acceptable name for each amine. a. b.Ch. 18 - Give an acceptable name for each amine. a. b.Ch. 18 - Give an acceptable name for each amine. a. b. c....Ch. 18 - Give an acceptable name for each amine. a. CH3(...Ch. 18 - Prob. 18.43PCh. 18 - Prob. 18.44PCh. 18 - Prob. 18.45PCh. 18 - Prob. 18.46PCh. 18 - Prob. 18.47PCh. 18 - Prob. 18.48PCh. 18 - Prob. 18.49PCh. 18 - Prob. 18.50PCh. 18 - Which compound in each pair has the higher boiling...Ch. 18 - Which compound in each pair has the higher boiling...Ch. 18 - Draw the hydrogen-bonding interactions that occur...Ch. 18 - Prob. 18.54PCh. 18 - Prob. 18.55PCh. 18 - Which compound has the higher water solubility:...Ch. 18 - Prob. 18.57PCh. 18 - Prob. 18.58PCh. 18 - Draw the products of each acid-base reaction. a....Ch. 18 - Draw the products of each acid-base reaction. a....Ch. 18 - Prob. 18.61PCh. 18 - Prob. 18.62PCh. 18 - What type of nitrogen heterocycle occurs in both...Ch. 18 - Only one of the N atoms in nicotine has a trigonal...Ch. 18 - Prob. 18.65PCh. 18 - Prob. 18.66PCh. 18 - Why are aqueous solutions of an alkaloid slightly...Ch. 18 - Prob. 18.68PCh. 18 - Prob. 18.69PCh. 18 - Explain why patients with Parkinson’s disease...Ch. 18 - Prob. 18.71PCh. 18 - Prob. 18.72PCh. 18 - Prob. 18.73PCh. 18 - Prob. 18.74PCh. 18 - Prob. 18.75PCh. 18 - Prob. 18.76PCh. 18 - Prob. 18.77PCh. 18 - Prob. 18.78PCh. 18 - Prob. 18.79PCh. 18 - Prob. 18.80PCh. 18 - Prob. 18.81PCh. 18 - Prob. 18.82PCh. 18 - Prob. 18.83PCh. 18 - Prob. 18.84PCh. 18 - Prob. 18.85PCh. 18 - Prob. 18.86PCh. 18 - Prob. 18.87PCh. 18 - Why do some antihistamines cause drowsiness while...Ch. 18 - Prob. 18.89PCh. 18 - Prob. 18.90PCh. 18 - Compare the structures of morphine and heroin....Ch. 18 - Prob. 18.92CP
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