EBK INTRODUCTORY CHEMISTRY: AN ACTIVE L
6th Edition
ISBN: 8220100547508
Author: CRACOLICE
Publisher: Cengage Learning US
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Chapter 4, Problem 1PE
Interpretation Introduction
(a)
Interpretation:
The pressure units are to be changed from torr to bar.
Concept introduction:
Interpretation Introduction
(b)
Interpretation: The units of pressure are to be converted from torr to inches of mercury.
Concept introduction: 1 atm = 29.92 in. Hg
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14:40 A
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13. The compound 1-bromo-hex-2-ene
reacts with methanol to form two
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correct statement:
OCH3
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Br
OCH3 +
+ HBr
A
B
A) The two products formed will have
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B) Product B will be formed by SN1
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C) Product A will be formed by SN1
substitution reaction with the formation
of a more stable carbocation than
product B.
D) Product A will be formed by an SN2
substitution reaction occurring in two
stages, the first with slow kinetics and
the second with fast kinetics.
E) The two compounds were obtained
by addition reaction, with compound B
having the highest percentage of
formation.
57
--
☑
14:30 A
Candidate Identification
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10. Amoxicillin (figure X) is one of the
most widely used antibiotics in the
penicillin family. The discovery and
synthesis of these antibiotics in the 20th
century made the treatment of infections
that were previously fatal routine.
About amoxicillin, mark the correct one:
HO
NH2 H
S
-N.
HO
Figura X. Amoxicilina
A) It has the organic functions amide,
ester, phenol and amine.
B) It has four chiral carbons and 8
stereoisomers.
C) The substitution of the aromatic ring
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D) If amoxicillin reacts with an alcohol it
can form an ester.
E) The structure has two tertiary
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62
The environmental police of a Brazilian state received a report of contamination of a river by inorganic arsenic, due to the excessive use of pesticides on a plantation on the riverbanks. Arsenic (As) is extremely toxic in its many forms and oxidation states. In nature, especially in groundwater, it is found in the form of arsenate (AsO ₄ ³ ⁻ ), which can be electrochemically reduced to As ⁰ and collected at the cathode of a coulometric cell. In this case, Potentiostatic Coulometry (at 25°C) was performed in an alkaline medium (pH = 7.5 throughout the analysis) to quantify the species. What potential (E) should have been selected/applied to perform the analysis, considering that this is an exhaustive electrolysis technique (until 99.99% of all AsO ₄ ³ ⁻ has been reduced to As ⁰ at the electrode, or n( final) = 0.01% n( initial )) and that the concentration of AsO ₄ ³ ⁻ found in the initial sample was 0.15 mmol/L ?
Data:
AsO ₄ 3 ⁻ (aq) + 2 H ₂ O ( l ) + 2 e ⁻ → A s O ₂ ⁻ ( a…
Chapter 4 Solutions
EBK INTRODUCTORY CHEMISTRY: AN ACTIVE L
Ch. 4 - Prob. 1ECh. 4 - Prob. 2ECh. 4 - Prob. 3ECh. 4 - Prob. 4ECh. 4 - Prob. 5ECh. 4 - Prob. 6ECh. 4 - Prob. 7ECh. 4 - Prob. 8ECh. 4 - Prob. 9ECh. 4 - Prob. 10E
Ch. 4 - Prob. 11ECh. 4 - The density of liquid oxygen is about 1.4 g/cm3....Ch. 4 - Prob. 13ECh. 4 - Prob. 14ECh. 4 - Prob. 15ECh. 4 - Prob. 16ECh. 4 - Prob. 17ECh. 4 - Prob. 18ECh. 4 - Prob. 19ECh. 4 - Prob. 20ECh. 4 - Prob. 21ECh. 4 - Prob. 22ECh. 4 - Prob. 23ECh. 4 - Prob. 24ECh. 4 - Prob. 25ECh. 4 - Prob. 26ECh. 4 - Prob. 27ECh. 4 - Many common liquids have boiling points that are...Ch. 4 - Hydrogen cyanide is the deadly gas used in some...Ch. 4 - Prob. 30ECh. 4 - Prob. 31ECh. 4 - Prob. 32ECh. 4 - Prob. 33ECh. 4 - Prob. 34ECh. 4 - Prob. 35ECh. 4 - Prob. 36ECh. 4 - Prob. 37ECh. 4 - A sample of carbon dioxide gas at a pressure of...Ch. 4 - Prob. 39ECh. 4 - A sample of krypton gas at a pressure of 905 torr...Ch. 4 - Prob. 41ECh. 4 - A sample of krypton gas occupies a volume of 6.68...Ch. 4 - Prob. 43ECh. 4 - Prob. 44ECh. 4 - Prob. 45ECh. 4 - Prob. 46ECh. 4 - If 1 cubic foot-28.3 L-of air at common room...Ch. 4 - Prob. 48ECh. 4 - Prob. 49ECh. 4 - Prob. 50ECh. 4 - Prob. 51ECh. 4 - Prob. 52ECh. 4 - A container with a volume of 56.2 L holds helium...Ch. 4 - At STP, a sample of neon fills a 4.47-L container....Ch. 4 - Prob. 55ECh. 4 - Prob. 56ECh. 4 - Prob. 57ECh. 4 - Prob. 58ECh. 4 - Prob. 59ECh. 4 - Prob. 60ECh. 4 - Prob. 61ECh. 4 - Air in a steel cylinder is heated from 19 0C to 42...Ch. 4 - A gas storage tank is designed to hold a fixed...Ch. 4 - Prob. 64ECh. 4 - If 1.62 m3 of air at 120C and 738 torr is...Ch. 4 - Prob. 66ECh. 4 - The compression ratio in an automobile engine is...Ch. 4 - Target check For each of the macroscopic...Ch. 4 - Prob. 4.2TCCh. 4 - Prob. 4.3TCCh. 4 - Prob. 4.4TCCh. 4 - Prob. 1CLECh. 4 - Prob. 2CLECh. 4 - Prob. 3CLECh. 4 - Prob. 4CLECh. 4 - Prob. 5CLECh. 4 - Prob. 1PECh. 4 - Prob. 2PECh. 4 - Prob. 3PECh. 4 - Prob. 4PECh. 4 - Prob. 5PECh. 4 - Prob. 6PE
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