Chemistry for Today: General, Organic, and Biochemistry
9th Edition
ISBN: 9781305960060
Author: Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen
Publisher: Cengage Learning
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Chapter 8, Problem 8.18E
Interpretation Introduction
Interpretation:
The number of moles of
Concept introduction:
The average
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The atmosphere slowly oxidizes hydrocarbons in a number of steps that eventually convert the hydrocarbon into carbon dioxide and water. The overall reaction of a number of such steps for methane gas is:CH4(g) + 5 O2(g) + 5 NO(g) ------> CO2(g) + H2O(g) + 5 NO2(g) + 2 OH(g)
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The zinc in a copper-plated penny will dissolve in hydrochloric acid if the copper coating is filed down in several spots (so that the hydrochloric acid can get to the zinc). The reaction between the acid and the zinc is: 2H+(aq)+Zn(s)→H2(g)+Zn2+(aq). When the zinc in a certain penny dissolves, the total volume of gas collected over water at 25 ∘C was 0.957 L at a total pressure of 750 mmHg .
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Q1 (a) 3.2 g of sulphur was produced in a reaction between 6.0 L of hydrogen sulfide gas
with excess an amount of sulphur dioxide. With the aid of Table Q1 (a)(i) and
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Element
Actinium
Aluminum
Americium
Antimony
Argon
Arsenic
Astatine
Barium
Berkelium
Beryllium
Bismuth
Boron
Bromine
Cadmium
Calcium
Californium
Carbon
Cerium
Cesium
Chlorine
Chromium
Cobalt
Copper
Curiam
CY
с
Ce
Cs
a
Cr
Co
Ca
Cm
Dysprosium Dy
Einsteinium
Es
Er
Eu
Fm
F
Fr
Gd
Ga
Ge
Erbium
Europium
Fermium
Fluorine
Francium
Gadoliniam
Gallium
Germaniam
Gold
Hafnium
Helium
Holmium
Hydrogen
Indium
Iodine
Iridium
Iron
Krypton
Lanthanam
Lawrencium
Lead
Lithiam
Lutetium
Table Q1 (a)(i): Atomic Number and Atomic Mass of Elements
Magnesium
Manganese
Symbol
Ac
Al
Am
Sb
As
Al
Ba
Bk
Be
Bi
B
Br
Ca
Hr
He
Ho
H
In
I
Ir
Fe
Kr
La
Lr
Ph
Li
Lu
Mg
Mn
Atomic
number (2)
89
13
95
51
18
33
85
56
97
4
83
5
35
48
20
98
6
58
55
17
24
27
29
96
66
99
68…
Chapter 8 Solutions
Chemistry for Today: General, Organic, and Biochemistry
Ch. 8 - Classify the following processes as spontaneous or...Ch. 8 - Classify the following processes as spontaneous or...Ch. 8 - Classify the following processes as exergonic or...Ch. 8 - Classify the following processes as exergonic or...Ch. 8 - Describe the energy and entropy changes that occur...Ch. 8 - Describe the energy and entropy changes that occur...Ch. 8 - Pick the example with the highest entropy from...Ch. 8 - Pick the example with the highest entropy from...Ch. 8 - You probably know that on exposure to air silver...Ch. 8 - Classify the following processes according to...
Ch. 8 - Classify the following processes according to...Ch. 8 - Describe the observations or measurements that...Ch. 8 - Prob. 8.13ECh. 8 - Consider the following hypothetical reaction: A+BC...Ch. 8 - Consider the following hypothetical reaction: A+BC...Ch. 8 - A reaction generates chlorine gas (Cl2) as a...Ch. 8 - A reaction generates hydrogen gas (H2) as a...Ch. 8 - Prob. 8.18ECh. 8 - Prob. 8.19ECh. 8 - In each of the following, which reaction mechanism...Ch. 8 - Which reaction mechanism assumptions are...Ch. 8 - Prob. 8.22ECh. 8 - Sketch energy diagrams to represent each of the...Ch. 8 - Prob. 8.24ECh. 8 - Use energy diagrams to compare catalyzed and...Ch. 8 - Prob. 8.26ECh. 8 - The following reactions are proposed. Make a rough...Ch. 8 - Prob. 8.28ECh. 8 - Prob. 8.29ECh. 8 - Suppose you are running a reaction and you want to...Ch. 8 - A reaction is started by mixing reactants. As time...Ch. 8 - A reaction is run at 10C and takes 3.7hours to go...Ch. 8 - What factor is more important than simply the...Ch. 8 - Prob. 8.34ECh. 8 - Describe the establishment of equilibrium in a...Ch. 8 - Prob. 8.36ECh. 8 - Prob. 8.37ECh. 8 - Colorless hydrogen gas (H2) and red-brown colored...Ch. 8 - Colorless N2O4 gas decomposes to form red-brown...Ch. 8 - Prob. 8.40ECh. 8 - Write an equilibrium expression for each of the...Ch. 8 - Prob. 8.42ECh. 8 - Prob. 8.43ECh. 8 - Prob. 8.44ECh. 8 - Prob. 8.45ECh. 8 - A sample of gaseous BrCl is allowed to decompose...Ch. 8 - At 600C, gaseous CO and Cl2 are mixed together in...Ch. 8 - A mixture of the gases NOCl, Cl2 and NO is allowed...Ch. 8 - Consider the following equilibrium constants....Ch. 8 - Prob. 8.50ECh. 8 - Use Le Chteliers principle to predict the...Ch. 8 - Use Le Chteliers principle to predict the...Ch. 8 - Use Le Chteliers principle to predict the...Ch. 8 - Prob. 8.54ECh. 8 - Tell what will happen to each equilibrium...Ch. 8 - Tell what will happen to each equilibrium...Ch. 8 - The gaseous reaction 2HBr(g)H2(g)+Br2(g) is...Ch. 8 - Prob. 8.58ECh. 8 - Prob. 8.59ECh. 8 - Prob. 8.60ECh. 8 - Prob. 8.61ECh. 8 - Prob. 8.62ECh. 8 - Prob. 8.63ECh. 8 - Prob. 8.64ECh. 8 - Prob. 8.65ECh. 8 - Prob. 8.66ECh. 8 - Refer to Figure 8.10 and answer the questions....Ch. 8 - Refer to Figure 8.13 and answer the questions....Ch. 8 - Prob. 8.69ECh. 8 - Prob. 8.70ECh. 8 - Suppose you have two identical unopened bottles of...Ch. 8 - Someone once suggested that it is impossible to...Ch. 8 - A reaction takes place between an acid and...Ch. 8 - If the reaction:A+BC+D is designated as first...Ch. 8 - Prob. 8.75ECh. 8 - A book is held 6 feet above the floor and then...Ch. 8 - Prob. 8.77ECh. 8 - Prob. 8.78ECh. 8 - Prob. 8.79ECh. 8 - Prob. 8.80ECh. 8 - Prob. 8.81ECh. 8 - Which of the following is the best example of...Ch. 8 - Which is NOT an example of an endothermic change?...Ch. 8 - Which of the following processes is endothermic?...Ch. 8 - Which sentence best describes the following...Ch. 8 - By which of the following mechanisms does a...Ch. 8 - Which of the following is NOT true of reversible...Ch. 8 - Given the reaction: 2CO(g)+O2(g)2CO2(g) When there...Ch. 8 - Prob. 8.89ECh. 8 - Consider the reaction N2(g)+3H2(g)2NH3(g)+heat....Ch. 8 - Prob. 8.91ECh. 8 - Prob. 8.92ECh. 8 - For the reaction: H2(g)+Br2(g)2HBr(g), the...Ch. 8 - Prob. 8.94E
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- A mixture contained zinc sulfide, ZnS, and lead sulfide, PbS. A sample of the mixture weighing 6.12 g was reacted with an excess of hydrochloric acid. The reactions are ZnS(s)+2HCL(aq)ZnCl2(aq)+H2S(g)PbS(s)+2HCL(aq)PbCl2(aq)+H2S(g) If the sample reacted completely and produced 1.049 L of hydrogen sulfide, H2S, at 23C and 762 mmHg, what were the percentages of ZnS and PbS in the mixture?arrow_forward62 Ammonium dinitramide (ADN), NH4N(NO2)2, was considered as a possible replacement for aluminium chloride as the oxidizer in the solid fuel booster rockets used to launch the space shuttle. When detonated by a spark, AND rapidly decomposes to produce a gaseous mixture of N2,O2, and H2O. (This is not a combustion reaction. The ADN is the only reactant.) The reaction releases a lot of heat, so the gases are initially formed at high temperature and pressure. The thrust of the rocket results mainly from the expansion of this gas mixture. Suppose a 2.3-kg sample of ADN is denoted and decomposes completely to give N2,O2, and H2O. If the resulting gas mixture expands until it reaches a temperature of 100°C and a pressure of 1.00 atm, what volume will it occupy? Is your answer consistent with the proposed use of ADN as a rocket fuel?arrow_forwardYou have a 550.-mL tank of gas with a pressure of 1.56 atm at 24 C. You thought the gas was pure carbon monoxide gas, CO, but you later found it was contaminated by small quantities of gaseous CO2 and O2. Analysis shows that the tank pressure is 1.34 atm (at 24 C) if the CO2 is removed. Another experiment shows that 0.0870 g of O2 can be removed chemically. What are the masses of CO and CO2 in the tank, and what is the partial pressure of each of the three gases at 25 C?arrow_forward
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