Chemistry (7th Edition)
7th Edition
ISBN: 9780321943170
Author: John E. McMurry, Robert C. Fay, Jill Kirsten Robinson
Publisher: PEARSON
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Textbook Question
Chapter 4, Problem 4.27A
APPLY 4.27 Police often use a Breathalyzer test to determine the ethanol (C2H5OH) content in a person's blood. The test involves a
(a) Identify the element that gets oxidized and the element that gets reduced.
(b) Give the oxidizing agent and the reducing agent.
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Using reaction free energy to predict equilibrium composition
Consider the following equilibrium:
2NO2 (g) = N2O4(g)
AGº = -5.4 kJ
Now suppose a reaction vessel is filled with 4.53 atm of dinitrogen tetroxide (N2O4) at 279. °C. Answer the following questions about this system:
Under these conditions, will the pressure of N2O4 tend to rise or fall?
Is it possible to reverse this tendency by adding NO2?
In other words, if you said the pressure of N2O4 will tend to rise, can that
be changed to a tendency to fall by adding NO2? Similarly, if you said the
pressure of N2O4 will tend to fall, can that be changed to a tendency to
'2'
rise by adding NO2?
If you said the tendency can be reversed in the second question, calculate
the minimum pressure of NO 2 needed to reverse it.
Round your answer to 2 significant digits.
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rise
☐ x10
fall
yes
no
☐ atm
G
Ar
1
Why do we analyse salt?
Curved arrows are used to illustrate the flow of electrons. Using
the provided starting and product structures, draw the curved
electron-pushing arrows for the following reaction or
mechanistic step(s).
Be sure to account for all bond-breaking and bond-making
steps.
H
H
CH3OH, H+
H
Select to Add Arrows
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'H
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HH
■ Select to Add Arrows
CH3OH,
H*
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H
CH3OH, H+
HH
■ Select to Add Arrows i
Please select a drawing or reagent from the question area
Chapter 4 Solutions
Chemistry (7th Edition)
Ch. 4 - Prob. 4.1PCh. 4 - Prob. 4.2ACh. 4 - Prob. 4.3PCh. 4 - Prob. 4.4PCh. 4 - Prob. 4.5ACh. 4 - Prob. 4.6PCh. 4 - APPLY 4.7 Sulfuric acid is normally purchased at a...Ch. 4 - Prob. 4.8PCh. 4 - Conceptual APPLY 4.9 Three different substances,...Ch. 4 - Prob. 4.10P
Ch. 4 - Prob. 4.11ACh. 4 - Prob. 4.12PCh. 4 - APPLY 4.13 How might you use a precipitation...Ch. 4 - Conceptual PRACTICE 4.14 An aqueous solution...Ch. 4 - Conceptual APPLY 4.15 A solution containing the...Ch. 4 - Prob. 4.16PCh. 4 - APPLY 4.17 Give likely chemical formulas...Ch. 4 - PRACTICE 4.18 Write a balanced ionic equation and...Ch. 4 - Prob. 4.19ACh. 4 - Prob. 4.20PCh. 4 - Prob. 4.21ACh. 4 - Prob. 4.22PCh. 4 - Prob. 4.23ACh. 4 - PRACTICE 4.24 Assign an oxidation number to each...Ch. 4 - APPLY 4.25 Chlorine can have several different...Ch. 4 - Prob. 4.26PCh. 4 - APPLY 4.27 Police often use a Breathalyzer test to...Ch. 4 - PRACTICE 4.28 Predict whether the following...Ch. 4 - Prob. 4.29ACh. 4 - Prob. 4.30PCh. 4 - Prob. 4.31ACh. 4 - Prob. 4.32PCh. 4 - Prob. 4.33PCh. 4 - Prob. 4.34PCh. 4 - Prob. 4.35PCh. 4 - Prob. 4.36PCh. 4 - Prob. 4.37PCh. 4 - Prob. 4.38CPCh. 4 - Prob. 4.39CPCh. 4 - Prob. 4.40CPCh. 4 - Assume that an aqueous solution Of a cation,...Ch. 4 - The following pictures represent aqueous solutions...Ch. 4 - Prob. 4.43CPCh. 4 - The concentration of an aqueous solution of NaOCl...Ch. 4 - Assume that the electrical conductivity of a...Ch. 4 - Based on the positions in the periodic table,...Ch. 4 - The following two redox reactions occur between...Ch. 4 - Prob. 4.48SPCh. 4 - How many grams of solute would you use to prepare...Ch. 4 - How many milliliters of a 0.45 M BaCl2 solution...Ch. 4 - How many milliliters of a 0.350 M KOH solution...Ch. 4 - The sterile saline solution used to rinse contact...Ch. 4 - Prob. 4.53SPCh. 4 - Copper reacts with dilute nitric acid according to...Ch. 4 - Prob. 4.55SPCh. 4 - Prob. 4.56SPCh. 4 - Prob. 4.57SPCh. 4 - Prob. 4.58SPCh. 4 - Prob. 4.59SPCh. 4 - Prob. 4.60SPCh. 4 - Prob. 4.61SPCh. 4 - Prob. 4.62SPCh. 4 - Prob. 4.63SPCh. 4 - Prob. 4.64SPCh. 4 - Is it possible for a molecular substance to be a...Ch. 4 - Prob. 4.66SPCh. 4 - Prob. 4.67SPCh. 4 - Prob. 4.68SPCh. 4 - Prob. 4.69SPCh. 4 - Prob. 4.70SPCh. 4 - Prob. 4.71SPCh. 4 - Prob. 4.72SPCh. 4 - Prob. 4.73SPCh. 4 - Prob. 4.74SPCh. 4 - Prob. 4.75SPCh. 4 - Prob. 4.76SPCh. 4 - Prob. 4.77SPCh. 4 - Prob. 4.78SPCh. 4 - Prob. 4.79SPCh. 4 - Prob. 4.80SPCh. 4 - Prob. 4.81SPCh. 4 - Prob. 4.82SPCh. 4 - Prob. 4.83SPCh. 4 - Prob. 4.84SPCh. 4 - Prob. 4.85SPCh. 4 - Assume that you are given a solution of an unknown...Ch. 4 - Prob. 4.87SPCh. 4 - Prob. 4.88SPCh. 4 - Prob. 4.89SPCh. 4 - Prob. 4.90SPCh. 4 - Prob. 4.91SPCh. 4 - Prob. 4.92SPCh. 4 - Prob. 4.93SPCh. 4 - Prob. 4.94SPCh. 4 - Prob. 4.95SPCh. 4 - Prob. 4.96SPCh. 4 - Prob. 4.97SPCh. 4 - Prob. 4.98SPCh. 4 - Prob. 4.99SPCh. 4 - Prob. 4.100SPCh. 4 - Where in the periodic table are the most easily...Ch. 4 - In each of the following instances, tell whether...Ch. 4 - Tell for each of the following substances whether...Ch. 4 - Prob. 4.104SPCh. 4 - Prob. 4.105SPCh. 4 - Prob. 4.106SPCh. 4 - Prob. 4.107SPCh. 4 - Nitrogen can have several different oxidation...Ch. 4 - Phosphorus can have several different oxidation...Ch. 4 - Which element is oxidized and which is reduced in...Ch. 4 - 4.111 Which element is oxidized and which is...Ch. 4 - Use the activity series of metals (Table 4.5) to...Ch. 4 - Prob. 4.113SPCh. 4 - Prob. 4.114SPCh. 4 - Prob. 4.115SPCh. 4 - Iodine, I2, reacts with aqueous thiosulfate ion in...Ch. 4 - Iodine, I2, reacts with aqueous thiosulfate ion in...Ch. 4 - Dichromate ion, Cr2O72 , reacts with aqueous...Ch. 4 - Prob. 4.119SPCh. 4 - Prob. 4.120SPCh. 4 - Standardized solutions Of KBrO3are frequently used...Ch. 4 - Prob. 4.122SPCh. 4 - Prob. 4.123SPCh. 4 - Prob. 4.124SPCh. 4 - Calcium levels in blood can be determined by...Ch. 4 - Prob. 4.126CPCh. 4 - Prob. 4.127CPCh. 4 - Prob. 4.128CPCh. 4 - Prob. 4.129CPCh. 4 - Prob. 4.130CPCh. 4 - Prob. 4.131CPCh. 4 - Prob. 4.132CPCh. 4 - Prob. 4.133CPCh. 4 - Prob. 4.134CPCh. 4 - Prob. 4.135CPCh. 4 - Prob. 4.136CPCh. 4 - Prob. 4.137CPCh. 4 - Prob. 4.138CPCh. 4 - Prob. 4.139CPCh. 4 - Prob. 4.140CPCh. 4 - Prob. 4.141CPCh. 4 - Prob. 4.142CPCh. 4 - Prob. 4.143CPCh. 4 - Prob. 4.144CPCh. 4 - Prob. 4.145CPCh. 4 - Prob. 4.146CPCh. 4 - Prob. 4.147CPCh. 4 - Prob. 4.148CPCh. 4 - Prob. 4.149CPCh. 4 - Prob. 4.150CPCh. 4 - Prob. 4.150MPCh. 4 - Prob. 4.151CPCh. 4 - Prob. 4.151MPCh. 4 - Prob. 4.152CPCh. 4 - Prob. 4.152MPCh. 4 - Prob. 4.153CPCh. 4 - Prob. 4.153MPCh. 4 - Prob. 4.154CPCh. 4 - Prob. 4.154MPCh. 4 - Prob. 4.155CPCh. 4 - Prob. 4.155MPCh. 4 - Prob. 4.156CPCh. 4 - Prob. 4.156MPCh. 4 - Prob. 4.157CPCh. 4 - Prob. 4.157MPCh. 4 - Prob. 4.158CPCh. 4 - Prob. 4.158MPCh. 4 - Prob. 4.159CPCh. 4 - Prob. 4.159MPCh. 4 - Prob. 4.160CPCh. 4 - Prob. 4.160MPCh. 4 - Prob. 4.161MPCh. 4 - Prob. 4.162MP
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