General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN: 9781305580343
Author: Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher: Cengage Learning
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Textbook Question
Chapter 14, Problem 14.59QP
Hydrogen fluoride decomposes according to the following equation:
The value of Kc at room temperature is 10 × 10−95. From the magnitude of Kc, do you think the decomposition occurs to any great extent at room temperature? If an equilibrium mixture in a 1.0-L vessel contains 1.0 mol HF, what is the amount of H2 formed? Does this result agree with what you expect from the magnitude of Kc?
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LTS
Solid:
AT=Te-Ti
Trial 1
Trial 2
Trial 3
Average
ΔΗ
Mass water, g
24.096
23.976
23.975
Moles of solid, mol
0.01763
001767
0101781
Temp. change, °C
2.9°C
11700
2.0°C
Heat of reaction, J
-292.37J -170.473
-193.26J
AH, kJ/mole
16.58K 9.647 kJ 10.85 kr
16.58K59.64701
KJ
mol
12.35k
Minimum AS,
J/mol K
41.582
mol-k
Remember: q = mCsAT (m = mass of water, Cs=4.184J/g°C) & qsin =-qrxn &
Show your calculations for:
AH in J and then in kJ/mole for Trial 1:
qa (24.0969)(4.1845/g) (-2.9°C)=-292.37J
qsin =
qrxn =
292.35 292.37J
AH in J = 292.375 0.2923kJ
0.01763m01
=1.65×107
AH in kJ/mol =
=
16.58K
0.01763mol
mol
qrx
Minimum AS in J/mol K (Hint: use the average initial temperature of the three trials, con
Kelvin.)
AS=AHIT
(1.65×10(9.64×103) + (1.0
Jimai
For the compound: C8H17NO2
Use the following information to come up with a plausible structure:
8
This compound has "carboxylic acid amide" and ether functional groups.
The peaks at 1.2ppm are two signals that are overlapping one another.
One of the two signals is a doublet that represents 6 hydrogens; the
other signal is a quartet that represents 3 hydrogens.
Vnk the elements or compounds in the table below in decreasing order of their boiling points. That is, choose 1 next to the substance with the highest bolling
point, choose 2 next to the substance with the next highest boiling point, and so on.
substance
C
D
chemical symbol,
chemical formula
or Lewis structure.
CH,-N-CH,
CH,
H
H 10: H
C-C-H
H H H
Cale
H 10:
H-C-C-N-CH,
Bri
CH,
boiling point
(C)
Сен
(C) B
(Choose
Chapter 14 Solutions
General Chemistry - Standalone book (MindTap Course List)
Ch. 14.1 - Synthesis gas (a mixture of CO and H2) is...Ch. 14.1 - Two substances A and B react to produce substance...Ch. 14.2 - a. Write the equilibrium-constant expression Kc...Ch. 14.2 - When 1.00 mol each of carbon monoxide and water...Ch. 14.2 - Hydrogen sulfide, a colorless gas with a foul...Ch. 14.2 - Phosphorus pentachloride dissociates on heating:...Ch. 14.2 - Consider the following hypothetical reactions. The...Ch. 14.3 - The Mond process for purifying nickel involves the...Ch. 14.4 - The equilibrium constant Kc for the reaction...Ch. 14.5 - A 10.0-L vessel contains 0.0015 mol CO2 and 0.10...
Ch. 14.5 - Carbon monoxide and hydrogen react in the presence...Ch. 14.6 - Phosphorus pentachloride gives an equilibrium...Ch. 14.6 - What is the equilibrium composition of a reaction...Ch. 14.6 - Phosphorus pentachloride, PCl5, decomposes when...Ch. 14.6 - Prob. 14.4CCCh. 14.7 - Prob. 14.12ECh. 14.8 - Can you increase the amount of product in each of...Ch. 14.8 - Prob. 14.14ECh. 14.8 - Prob. 14.5CCCh. 14.8 - Prob. 14.15ECh. 14 - Consider the reaction N2O4(g)2NO2(g). Draw a graph...Ch. 14 - When 1.0 mol each of H2(g) and I2(g) are mixed at...Ch. 14 - Prob. 14.3QPCh. 14 - Obtain the equilibrium constant for the reaction...Ch. 14 - Which of the following reactions involve...Ch. 14 - Prob. 14.6QPCh. 14 - Prob. 14.7QPCh. 14 - Prob. 14.8QPCh. 14 - Prob. 14.9QPCh. 14 - Prob. 14.10QPCh. 14 - How is it possible for a catalyst to give products...Ch. 14 - Prob. 14.12QPCh. 14 - A chemist put 1.18 mol of substance A and 2.85 mol...Ch. 14 - The reaction 3A(g)+B(s)2C(aq)+D(aq) occurs at 25C...Ch. 14 - A graduate student places 0.272 mol of PCl3(g) and...Ch. 14 - An experimenter places the following...Ch. 14 - Chemical Equilibrium I Part 1: You run the...Ch. 14 - Chemical Equilibrium II Magnesium hydroxide....Ch. 14 - During an experiment with the Haber process, a...Ch. 14 - Suppose liquid water and water vapor exist in...Ch. 14 - A mixture initially consisting of 2 mol CO and 2...Ch. 14 - Prob. 14.22QPCh. 14 - For the reaction 2HI(g)H2(g)+I2(g) carried out at...Ch. 14 - An experimenter introduces 4.0 mol of gas A into a...Ch. 14 - The following reaction is earned out at 500 K in a...Ch. 14 - For the endothermic reaction AB(g)A(g)+B(g), the...Ch. 14 - Prob. 14.27QPCh. 14 - Prob. 14.28QPCh. 14 - A 2.500-mol sample of phosphorus pentachloride,...Ch. 14 - You place 4.00 mol of dinitrogen trioxide, N2O3,...Ch. 14 - You place 0.600 mol of nitrogen, N2, and 1.800 mol...Ch. 14 - Nitrogen monoxide, NO, reacts with bromine, Br2,...Ch. 14 - In the contact process, sulfuric acid is...Ch. 14 - Methanol, CH3OH, formerly known as wood alcohol,...Ch. 14 - Write equilibrium-constant expressions Kc for each...Ch. 14 - Write equilibrium-constant expressions Kc for each...Ch. 14 - The equilibrium-constant expression for a gas...Ch. 14 - Prob. 14.38QPCh. 14 - The equilibrium-constant expression for a reaction...Ch. 14 - Prob. 14.40QPCh. 14 - The equilibrium constant Kc, for the equation...Ch. 14 - The equilibrium constant Kc for the equation...Ch. 14 - A 13.0-L reaction vessel at 499C contained...Ch. 14 - A 4.00-L vessel contained 0.0148 mol of phosphorus...Ch. 14 - Obtain the value of Kc for the following reaction...Ch. 14 - Obtain the value of Kc for the following reaction...Ch. 14 - At 60C, 3.76 mol of nitrosyl bromide, NOBr, placed...Ch. 14 - A 2 00-mol sample of nitrogen dioxide was placed...Ch. 14 - Write equilibrium-constant expressions Kp for each...Ch. 14 - Write equilibrium-constant expressions Kp for each...Ch. 14 - The value of Kc for the following reaction at 298C...Ch. 14 - The equilibrium constant Kc equals 0.0952 for the...Ch. 14 - The reaction SO2(g)+12O2(g)SO3(g) has Kp equal to...Ch. 14 - Fluorine, F2, dissociates into atoms on heating....Ch. 14 - Write the expression for the equilibrium constant...Ch. 14 - For each of the following equations, give the...Ch. 14 - On the basis of the value of Kc decide whether or...Ch. 14 - Would either of the following reactions go almost...Ch. 14 - Hydrogen fluoride decomposes according to the...Ch. 14 - Suppose sulfur dioxide reacts with oxygen at 25C....Ch. 14 - The following reaction has an equilibrium constant...Ch. 14 - The following reaction has an equilibrium constant...Ch. 14 - Methanol, CH3OH, is manufactured industrially by...Ch. 14 - Sulfur trioxide, used to manufacture sulfuric...Ch. 14 - Phosgene, COCl2, used in the manufacture of...Ch. 14 - Nitrogen monoxide, NO, is formed in automobile...Ch. 14 - Iodine and bromine react to give iodine...Ch. 14 - Initially a mixture contains 0.850 mol each of N2...Ch. 14 - Calculate the composition of the gaseous mixture...Ch. 14 - The equilibrium constant Kc, for the reaction...Ch. 14 - Suppose 1.000 mol CO and 3.000 mol H2 are put in a...Ch. 14 - The equilibrium constant Kc for the reaction...Ch. 14 - Consider the equilibrium FeO(s)+CO(g)Fe(s)+CO2(g)...Ch. 14 - a Predict the direction of reaction when chlorine...Ch. 14 - What would you expect to be the effect of an...Ch. 14 - Indicate whether either an increase or a decrease...Ch. 14 - Methanol is prepared industrially from synthesis...Ch. 14 - One way of preparing hydrogen is by the...Ch. 14 - Use thermochemical data (Appendix C) to decide...Ch. 14 - Use thermochemical data (Appendix C) to decide...Ch. 14 - What would you expect to be the general...Ch. 14 - Predict the general temperature and pressure...Ch. 14 - A mixture of carbon monoxide, hydrogen, and...Ch. 14 - Prob. 14.84QPCh. 14 - At 850C and 1.000 atm pressure, a gaseous mixture...Ch. 14 - An equilibrium mixture of dinitrogen tetroxide,...Ch. 14 - A 2.50-L vessel contains 1.75 mol N2, 1.75 mol H2,...Ch. 14 - A vessel originally contained 0.0200 mol iodine...Ch. 14 - A gaseous mixture containing 1.00 mol each of CO,...Ch. 14 - A 2.0-L reaction flask initially contains 0.010...Ch. 14 - Hydrogen bromide decomposes when heated according...Ch. 14 - Iodine monobromide, IBr, occurs as brownish-black...Ch. 14 - Phosgene, COCl2, is a toxic gas used in the...Ch. 14 - Dinitrogen tetroxide, N2O4, is a colorless gas...Ch. 14 - Prob. 14.95QPCh. 14 - Prob. 14.96QPCh. 14 - The amount of nitrogen dioxide formed by...Ch. 14 - The equilibrium constant Kc for the synthesis of...Ch. 14 - For the reaction N2(g)+3H2(g)2NH3(g) show that Kc...Ch. 14 - Prob. 14.100QPCh. 14 - At high temperatures, a dynamic equilibrium exists...Ch. 14 - At high temperatures, a dynamic equilibrium exists...Ch. 14 - The equilibrium constant Kc for the reaction...Ch. 14 - At 25C in a closed system, ammonium hydrogen...Ch. 14 - At moderately high temperatures, SbCl5 decomposes...Ch. 14 - The following reaction is important in the...Ch. 14 - Sulfuryl chloride is used in organic chemistry as...Ch. 14 - Phosgene was used as a poisonous gas in World War...Ch. 14 - Gaseous acetic acid molecules have a certain...Ch. 14 - Gaseous acetic acid molecules have a certain...Ch. 14 - When 0.112 mol of NO and 18.22 g of bromine are...Ch. 14 - Prob. 14.112QPCh. 14 - Prob. 14.113QPCh. 14 - Prob. 14.114QPCh. 14 - A chemist placed a mixture of CO2(g) and CF4(g)...Ch. 14 - Prob. 14.116QPCh. 14 - Prob. 14.117QPCh. 14 - The equilibrium constant Kc for the equation...Ch. 14 - Consider the reaction N2O4(g)2NO2(g). Would you...Ch. 14 - A researcher put 0.400 mol PCl3 and 0.600 mol Cl2...Ch. 14 - Ammonium hydrogen sulfide. NH4HS, is unstable at...Ch. 14 - A chemist wants to prepare phosgene, COCl2, by the...Ch. 14 - Prob. 14.123QPCh. 14 - Prob. 14.124QPCh. 14 - Prob. 14.125QPCh. 14 - A container with a volume of 1.500 L was evacuated...Ch. 14 - Prob. 14.127QPCh. 14 - Prob. 14.128QPCh. 14 - Prob. 14.129QPCh. 14 - Sulfur dioxide reacts with oxygen to produce...Ch. 14 - Molecular bromine, Br2, dissociates at elevated...Ch. 14 - Consider the production of ammonia from its...Ch. 14 - A mixture of 0.0565 mol phosphorus pentachloride,...Ch. 14 - Calcium carbonate, CaCO3, decomposes when heated...Ch. 14 - The following equilibrium was studied by analyzing...Ch. 14 - Prob. 14.136QPCh. 14 - Phosphorus pentachloride, PCl5, decomposes on...Ch. 14 - Antimony(V) chloride. SbCl5, decomposes on heating...
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