Chemistry: The Central Science (13th Edition)
13th Edition
ISBN: 9780321910417
Author: Theodore E. Brown, H. Eugene LeMay, Bruce E. Bursten, Catherine Murphy, Patrick Woodward, Matthew E. Stoltzfus
Publisher: PEARSON
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Chapter 2.4, Problem 2.4.1PE
Practice Exercise 1
The atomic weight of copper, Cu, is listed as 63.546. Which of the following statements are untrue?
(a) Not all the atoms of copper have the same number of electrons.
(b) All the copper atoms have 29 protons in the nucleus.
(c) The dominant isotopes of Cu must be 63Cu and 64Cu.
(d) Copper is a mixture of at least two isotopes.
(e) The number of electrons in the copper atoms is independent of
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When an unknown amine reacts with an unknown acid chloride, an amide with a molecular mass of 163 g/mol (M* = 163 m/z)
is formed. In the infrared spectrum, important absorptions appear at 1661, 750 and 690 cm. The 13C NMR and DEPT spectra
are provided. Draw the structure of the product as the resonance contributor lacking any formal charges.
13C NMR
DEPT 90
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160
120
80
40
0
200
160
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0
DEPT 135
T
200
160
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Draw the unknown amide.
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Chapter 2 Solutions
Chemistry: The Central Science (13th Edition)
Ch. 2.3 - Prob. 2.1.1PECh. 2.3 - Prob. 2.1.2PECh. 2.3 - Prob. 2.2.1PECh. 2.3 - Prob. 2.2.2PECh. 2.3 - Prob. 2.3.1PECh. 2.3 - Prob. 2.3.2PECh. 2.4 - Practice Exercise 1 The atomic weight of copper,...Ch. 2.4 - Prob. 2.4.2PECh. 2.5 - Prob. 2.5.1PECh. 2.5 - Prob. 2.5.2PE
Ch. 2.6 - 11.93 The vapor pressure of ethanol (C2H5OH) at 19...Ch. 2.6 - Prob. 2.6.2PECh. 2.7 - Prob. 2.7.1PECh. 2.7 - Prob. 2.7.2PECh. 2.7 - Prob. 2.8.1PECh. 2.7 - Consider the two-dimensional square lattice of...Ch. 2.7 - Prob. 2.9.1PECh. 2.7 - Given the ionic radii and molar masses of Sc3+...Ch. 2.7 - Prob. 2.10.1PECh. 2.7 - Prob. 2.10.2PECh. 2.8 - Prob. 2.11.1PECh. 2.8 - Prob. 2.11.2PECh. 2.8 - Prob. 2.12.1PECh. 2.8 - Prob. 2.12.2PECh. 2.8 - Prob. 2.13.1PECh. 2.8 - The table below shows the normal boiling points of...Ch. 2.8 - Prob. 2.14.1PECh. 2.8 - Prob. 2.14.2PECh. 2.9 - Prob. 2.15.1PECh. 2.9 - Prob. 2.15.2PECh. 2 - Prob. 1ECh. 2 - At 280C, raw milk sours in 4.0 h but takes 48 h to...Ch. 2 - At 900 o C, Kc = 0.0108 for the reaction CaCO3(g) ...Ch. 2 - Calculate the molar concentration of OH- in a...Ch. 2 - Pyridinium bromide (C5H5NHBr) is a strong...Ch. 2 - Prob. 6ECh. 2 - Prob. 7ECh. 2 - Prob. 8ECh. 2 - Prob. 9ECh. 2 - Indicate whether each statement is true or false:...Ch. 2 - Prob. 11ECh. 2 - Prob. 12ECh. 2 - Prob. 13ECh. 2 - At 20 oC, the vapor pressure of benzene (C6 H6) is...Ch. 2 - Summarize the evidence used by J. J. Thomson to...Ch. 2 - Prob. 16ECh. 2 - Prob. 17ECh. 2 - Prob. 18ECh. 2 - Suppose the rate law for the reaction in this...Ch. 2 - Practice Exercise 1 Using the data in Sample...Ch. 2 - Which of the following linear plots do you expect...Ch. 2 - A flask is charged with 0.100 mol of A and allowed...Ch. 2 - Prob. 23ECh. 2 - Prob. 24ECh. 2 - Prob. 25ECh. 2 - Prob. 26ECh. 2 - The addition of No accelerates the decomposition...Ch. 2 - Prob. 28ECh. 2 - Prob. 29ECh. 2 - The rates of many atmospheric reactions are...Ch. 2 - Prob. 31ECh. 2 - Prob. 32ECh. 2 - Prob. 33ECh. 2 - 15.23 The equilibrium constant for the...Ch. 2 - A mixture of 0.10 mol of NO, 0.050 mol of H2, and...Ch. 2 - Prob. 36ECh. 2 - Prob. 37ECh. 2 - Prob. 38ECh. 2 - Prob. 39ECh. 2 - Prob. 40ECh. 2 - Practice Exercise 1 Order the following three...Ch. 2 - Practice Exercise 1 What is the pH of a 0.28 M...Ch. 2 - Prob. 43ECh. 2 - Which of the following diagrams best represent an...Ch. 2 - Prob. 45ECh. 2 - Prob. 46ECh. 2 - Prob. 47ECh. 2 - Prob. 48ECh. 2 - Prob. 49ECh. 2 - 16.72 Calculate the molar concentration of OH- in...Ch. 2 - Prob. 51ECh. 2 - Prob. 52ECh. 2 - Prob. 53ECh. 2 - Prob. 54ECh. 2 - a. Given that Ka for acetic acid is 1.8 10-5 and...Ch. 2 - 16.78
a. Given that Kb for ammonia is 1.8 X 10 -5...Ch. 2 - Prob. 57ECh. 2 - Prob. 58ECh. 2 - Prob. 59ECh. 2 - Prob. 60ECh. 2 - Prob. 61ECh. 2 - Prob. 62ECh. 2 - 16.86 An unknown salt is either KBr, NH4 C1, KCN,...Ch. 2 - Prob. 64ECh. 2 - Prob. 65ECh. 2 - 16.89 Based on their compositions and structures...Ch. 2 - Prob. 67ECh. 2 - 16.91 Indicate whether each of the following...Ch. 2 - Prob. 69ECh. 2 - Prob. 70ECh. 2 - Prob. 71ECh. 2 - Prob. 72ECh. 2 - Prob. 73ECh. 2 - Prob. 74ECh. 2 - Prob. 75ECh. 2 - Prob. 76ECh. 2 - Prob. 77ECh. 2 - Prob. 78ECh. 2 - Prob. 79ECh. 2 - Benzoic acid (C6H5COOH) and aniline (C6H5NH2) are...Ch. 2 - Prob. 81ECh. 2 - Prob. 82ECh. 2 - Prob. 83ECh. 2 - Butyric acid is responsible for the foul smell of...Ch. 2 - Prob. 85ECh. 2 - Prob. 86ECh. 2 - Prob. 87AECh. 2 - 1S.113 Many moderately large organic molecules...Ch. 2 - Prob. 89AECh. 2 - Prob. 90AECh. 2 - Prob. 91AECh. 2 - Prob. 92AECh. 2 - Prob. 93AECh. 2 - 16.120 At 50 oC, the ion-product constant for H2...Ch. 2 - Prob. 95AECh. 2 - Prob. 96AECh. 2 - Prob. 97AECh. 2 - Prob. 98AECh. 2 - Prob. 99AECh. 2 - Which two statements about gas mixtures are true?...Ch. 2 - Prob. 101AECh. 2 - 13.6 If you compare the solubilities of the noble...Ch. 2 - Prob. 103AECh. 2 - Prob. 104AECh. 2 - Suppose you had a balloon made of some highly...Ch. 2 - Prob. 106AECh. 2 - Indicate whether each statement is true or false:...Ch. 2 - Indicate the type of solute-solvent interaction...Ch. 2 - An ionic compound has a very negative H soln in...Ch. 2 - Prob. 110AECh. 2 - Prob. 111AECh. 2 - The solubility of Cr (NO3)3 . 9 H2O in water is...
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