Connect Online Access 1-Semester for Organic Chemistry
6th Edition
ISBN: 9781260475609
Author: SMITH, Janice
Publisher: Mcgraw-hill Higher Education (us)
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Chapter 2.8, Problem 31P
Which species are Lewis acids?
a.
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3. Propose a synthesis for the following transformation. Do not draw an arrow-pushing
mechanism below, but make sure to draw the product of each proposed step (3 points).
CN
+ En
CN
3) Propagation of uncertainty. Every measurement has uncertainty. In this problem, we'll
evaluate the uncertainty in every step of a titration of potassium hydrogen phthalate (a
common acid used in titrations, abbreviated KHP, formula CsH5KO4) with NaOH of an
unknown concentration.
The calculation that ultimately needs to be carried out is:
concentration NaOH
1000 x mass KHP × purity KHP
molar mass KHP x volume NaOH
Measurements:
a) You use a balance to weigh 0.3992 g of KHP. The uncertainty is ±0.15 mg (0.00015
g).
b) You use a buret to slowly add NaOH to the KHP until it reaches the endpoint. It takes
18.73 mL of NaOH. The uncertainty of the burst is 0.03 mL..
c) The manufacturer states the purity of KHP is 100%±0.05%.
d) Even though we don't think much about them, molar masses have uncertainty as well.
The uncertainty comes from the distribution of isotopes, rather than random
measurement error. The uncertainty in the elements composing KHP are:
a. Carbon:
b. Hydrogen:
±0.0008…
Don't used hand raiting and don't used Ai solution
Chapter 2 Solutions
Connect Online Access 1-Semester for Organic Chemistry
Ch. 2.1 - a. Which compounds are Bronsted-Lowry acids:...Ch. 2.2 - a. Draw the conjugate acid of each base:...Ch. 2.2 - Label each statement as True or False.
a. is the...Ch. 2.2 - Decide which compound is the acid and which is the...Ch. 2.2 - Draw the products formed from the acid-base...Ch. 2.3 - Which compound in each pair is the stronger acid?...Ch. 2.3 - Use a calculator when necessary to answer the...Ch. 2.3 - Rank the conjugate bases of each of group of acids...Ch. 2.3 - Problem-2.10 Considers two acids: (formic acid,)...Ch. 2.3 - Prob. 11P
Ch. 2.4 - Draw the products of each reaction and determine...Ch. 2.4 - Prob. 13PCh. 2.5 - Without reference to a pKa table, decide which...Ch. 2.5 - Rank the labeled H atoms in the following compound...Ch. 2.5 - Which hydrogen in pseudoephedrine, the nasal...Ch. 2.5 - Which compound in each pair is the stronger acid?...Ch. 2.5 - Glycolic acid, HOCH2CO2H, is the simplest member...Ch. 2.5 - Explain the apparent paradox. HBr is a stronger...Ch. 2.5 - The CH bond in acetone, (CH3)2C=O, has a pKa of...Ch. 2.5 - Prob. 23PCh. 2.5 - For each pair of compounds: [1] Which indicated H...Ch. 2.5 - Rank the compounds in each group in order of...Ch. 2.5 - Prob. 26PCh. 2.5 - Prob. 27PCh. 2.6 - Prob. 28PCh. 2.7 - Problem 2.29
Compounds like amphetamine that...Ch. 2.8 - Problem 2.30 Which species are Lewis bases?
a. b....Ch. 2.8 - Which species are Lewis acids?
a. b. c. d.
Ch. 2.8 - For each reaction, label the Lewis acid and base....Ch. 2.8 - Prob. 33PCh. 2.8 - Prob. 34PCh. 2.8 - Label the Lewis acid and base. Use curved arrow...Ch. 2 - 2.36 Propranolol is an antihypertensive agent—that...Ch. 2 - 2.37 Amphetamine is a powerful stimulant of the...Ch. 2 - 2.38 What is the conjugate acid of each base?
a....Ch. 2 - 2.39 What is the conjugate base of each acid?
a....Ch. 2 - Draw the products of each proton transfer...Ch. 2 - Prob. 43PCh. 2 - What is Ka for each compound? Use a calculator...Ch. 2 - What is the pKa for each compound? a. b. c.Ch. 2 - Which of the following bases are strong enough to...Ch. 2 - Draw the products of each reaction. Use the pKa...Ch. 2 - a. What is the conjugate acid of A? b. What is the...Ch. 2 - Dimethyl ether (CH3OCH3) and ethanol (CH3CH2OH)...Ch. 2 - 2.59 Atenolol is a (beta) blocker, a drug used to...Ch. 2 - 2.60 Use the principles in Section 2.5 to label...Ch. 2 - 2.61 Label the three most acidic hydrogen atoms in...Ch. 2 - Prob. 66PCh. 2 - 2.63 Classify each compound as a Lewis base, a...Ch. 2 - 2.64 Classify each species as a Lewis acid, a...Ch. 2 - Label the Lewis acid and Lewis base in each...Ch. 2 - 2.66 Draw the products of each Lewis acid-base...Ch. 2 - Prob. 71PCh. 2 - 2.68 Answer the following questions about the four...Ch. 2 - Prob. 73PCh. 2 - 2.70 Hydroxide can react as a Brønsted-Lowry base...Ch. 2 - 2.71 Answer the following questions about esmolol,...Ch. 2 - Prob. 76PCh. 2 - Prob. 77PCh. 2 - Prob. 82P
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