EP ORGANIC CHEMISTRY -MOD.MASTERING 18W
9th Edition
ISBN: 9780136781776
Author: Wade
Publisher: PEARSON CO
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Chapter 20, Problem 20.28SP
Interpretation Introduction
Interpretation:
The usage of extractions with a separatory funnel to separate a mixture of the given compounds is to be stated.
Concept introduction:
The method used to separate the mixture of different compounds is known as solvent extraction. This method is based on the principle of phase distribution. It shows the differential solubility of a given solute in two immiscible solvents to separate it from the given mixture.
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Arrange the solutions in order of increasing acidity. (Note that K (HF) = 6.8 x 10 and K (NH3) = 1.8 × 10-5)
Rank solutions from least acidity to greatest acidity. To rank items as equivalent, overlap them.
▸ View Available Hint(s)
Least acidity
NH&F NaBr NaOH
NH,Br NaCIO
Reset
Greatest acidity
1. Consider the following molecular-level diagrams of a titration.
O-HA molecule
-Aion
°°
о
°
(a)
о
(b)
(c)
(d)
a. Which diagram best illustrates the microscopic representation for the
EQUIVALENCE POINT in a titration of a weak acid (HA) with sodium.
hydroxide?
(e)
Answers to the remaining 6 questions will be hand-drawn on paper and submitted as a single
file upload below:
Review of this week's reaction:
H₂NCN (cyanamide) + CH3NHCH2COOH (sarcosine) + NaCl, NH4OH, H₂O --->
H₂NC(=NH)N(CH3)CH2COOH (creatine)
Q7. Draw by hand the reaction of creatine synthesis listed above using line structures without showing
the Cs and some of the Hs, but include the lone pairs of electrons wherever they apply. (4 pts)
Q8. Considering the Zwitterion form of an amino acid, draw the Zwitterion form of Creatine. (2 pts)
Q9. Explain with drawing why the C-N bond shown in creatine structure below can or cannot rotate. (3
pts)
NH2(C=NH)-N(CH)CH2COOH
This bond
Q10. Draw two tautomers of creatine using line structures. (Note: this question is valid because problem
Q9 is valid). (4 pts)
Q11. Mechanism. After seeing and understanding the mechanism of creatine synthesis, students should
be ready to understand the first half of one of the Grignard reactions presented in a past…
Chapter 20 Solutions
EP ORGANIC CHEMISTRY -MOD.MASTERING 18W
Ch. 20.2C - Prob. 20.1PCh. 20.2C - Name the following carboxylic acids (when...Ch. 20.4B - Rank the compounds in each set in order of...Ch. 20.5 - Prob. 20.4PCh. 20.5 - Phenols are less acidic than carboxylic acids,...Ch. 20.5 - Prob. 20.6PCh. 20.7A - Prob. 20.7PCh. 20.7B - Prob. 20.8PCh. 20.7D - Draw all four resonance forms of the fragment at...Ch. 20.7D - a. Why do most long-chain fatty acids show a large...
Ch. 20.10 - Prob. 20.13PCh. 20.10 - A carboxylic acid has two oxygen atoms, each with...Ch. 20.10 - Prob. 20.15PCh. 20.10 - The mechanism of the Fischer esterification was...Ch. 20.10 - Prob. 20.17PCh. 20.12 - Show how to synthesize the following compounds,...Ch. 20.13 - Show how you would synthesize the following...Ch. 20.14 - Prob. 20.20PCh. 20.14 - Prob. 20.21PCh. 20.15 - Propose a mechanism for the reaction of benzoic...Ch. 20.15 - Prob. 20.23PCh. 20.15 - Prob. 20.24PCh. 20 - Prob. 20.25SPCh. 20 - Give both IUPAC names and common names for the...Ch. 20 - Draw the structures of the following compounds. a....Ch. 20 - Prob. 20.28SPCh. 20 - Arrange each group of compounds in order of...Ch. 20 - Predict the products (if any) of the following...Ch. 20 - Rank the following isomers in order of increasing...Ch. 20 - Prob. 20.32SPCh. 20 - What do the following pKa values tell you about...Ch. 20 - Given the structure of ascorbic acid (vitamin C):...Ch. 20 - Prob. 20.35SPCh. 20 - Show how you would accomplish the following...Ch. 20 - Predict the products and propose mechanisms for...Ch. 20 - Prob. 20.38SPCh. 20 - Prob. 20.39SPCh. 20 - Prob. 20.40SPCh. 20 - Prob. 20.44SPCh. 20 - Prob. 20.45SPCh. 20 - Predict the major form of each compound when it is...
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