GENERAL CHEMISTRY-MOD.MASTERINGCHEM.
11th Edition
ISBN: 9780134193601
Author: Petrucci
Publisher: PEARSON
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Textbook Question
Chapter 15, Problem 41E
Formamide, used in the manufacture of phairmaceuticals dyes and agricultural chemicals, decomposes at high temperatures
If 0.186 mol
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Part VII. The H-NMR of a compound with molecular formula C5 H 10 O2 is given below.
Find the following:
(a) The no. of protons corresponding to each signal in the spectra
(6) Give the structure of the compound and assign the signals to each
proton in the compound.
a
70.2
Integration Values
C5H10O2
b
47.7
C
46.5
d
69.5
3.6 3.5
3.4 3.3 3.2 3.1 3.0
2.9 2.8
2.7
2.6 2.5
2.4 2.3 2.2 2.1 2.0
Chemical Shift (ppm)
1.9
1.8
1.7 1.6
1.5
1.4 1.3 1.2
1.1 1.0
0.9 0.8
Part 111. 1 H-NMR spectrum of a compound with integration values in red is given below.
Answer the following:
(a) write the signals in the 'H-NMR spectrum to the corresponding protons on the structure
of the molecule below.
(b) Identify the theoretical multiplicities for each proton in the compound. Also give the possible.
complex splitting patterns assuming J values are not similar.
там
Br
22
2
3
6
4 7.2 7.0 6.8 6.6 6.4 6.2 6.0 5.8 5.6 5.4 5.2 5.0 4.8 4.6 4.4 4.2 4.0 3.8 3.6 3.4 3.2 3.0 2.8 2.6 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0
Chemical Shift (ppm)
ra.
Br
2
3
6
6
2.5
2.4
2.3
2.2
2.1
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
Chemical Shift (ppm)
2
2
Br
7.3
7.2
7.1
7.0 6.9
6.7 6.6 6.5
6.4
6.3
6.2
6.1
6.0
Chemical Shift (ppm)
5.9
5.8 5.7
5.5 5.4 5.3 5.2
5.0 4.9
1600°
1538°C
1493°C
In the diagram, the letter L indicates
that it is a liquid. Indicate its
components in the upper region
where only L is indicated.
The
iron-iron carbide phase
diagram.
Temperature (°C)
1400
8
1394°C
y+L
1200
2.14
y, Austenite
10000
912°C
800a
0.76
0.022
600
400
(Fe)
a, Ferrite
Composition (at% C)
15
1147°C
a + Fe3C
2
3
Composition (wt% C)
L
2500
4.30
2000
y + Fe3C
727°C
1500
Cementite (Fe3C)
1000
4
5
6
6.70
Temperature (°F)
Chapter 15 Solutions
GENERAL CHEMISTRY-MOD.MASTERINGCHEM.
Ch. 15 - Based on these descriptions, write a balanced...Ch. 15 - Based on these descriptions, write a balanced...Ch. 15 - Write equilibrium constant expressions, Kg , for...Ch. 15 - Write equilibrium constant expressions, Kg for the...Ch. 15 - Write an equilibrium constant, Kg1 for the...Ch. 15 - Write an equilibrium constant Kg for the formation...Ch. 15 - Determine values of Ks from the Kg values given....Ch. 15 - Determine the values of Kg from the Kg values...Ch. 15 - The vapor pressure of water at 25C is 238 mmHg....Ch. 15 - If Kg=5.12102 for the equilibrium established...
Ch. 15 - Determine Kz for the reaction...Ch. 15 - Given the equilibrium constant values...Ch. 15 - Use the following data to estimate a value of Kg...Ch. 15 - Determine Kg for the reaction...Ch. 15 - An important environmental and physiological...Ch. 15 - Rust Fe2O2(s) , is caused by the oxidation of iron...Ch. 15 - 1.00102 mol PCl3 is introduced into a 250.0 mL...Ch. 15 - A mixture of 1.00gH2 and 1.06gH2S in a 0.500 L...Ch. 15 - The two common chlorides of phosphorus, PCl2 and...Ch. 15 - A 0.682 g sample of ICI(g) is placed in a 625 mL...Ch. 15 - Write the equilibrium constant expression for the...Ch. 15 - Write the equilibrium constant expression for the...Ch. 15 - Equilibrium is established at 1000 K, where Ke=281...Ch. 15 - For the dissociation o l2(g)t about...Ch. 15 - In the Ostwald process for oxidizing ammonia, a...Ch. 15 - At 2000K, Kx=0.154 for the reaction...Ch. 15 - An equilibrium mixture at 1000 K contains 0.276...Ch. 15 - For the reaction CO(g)+H2O(g)CO2(g)+H2(g),Kc=23.2...Ch. 15 - Can a mixture of 2.2 mol O2 , 3.6 mol SO2 , and...Ch. 15 - Is a mixture of 0.0205 mol NO2(g) and...Ch. 15 - In the reaction 2SO2(g)+O2(g)2SO2(g) , 0.455 mol...Ch. 15 - In the reaction CO(g)+H2O(g)CO2(g)+H2(g),Kc=31.4...Ch. 15 - A mixture consisting of 0.150molH2 and 0.150moll2...Ch. 15 - Stating with 0.280 mol Sbcl2 and 0.160mol Cl2 ,...Ch. 15 - Starting with 0.3500 mo CO(g) and 0.05500 mol...Ch. 15 - g each of CO, H2O , and H2 are sealed in a 1.41L...Ch. 15 - Eqilibrium is established in a 2.50 L flask at...Ch. 15 - For the following reaction, Kg=2.00 at 100C ....Ch. 15 - The substances involved in the following in the...Ch. 15 - The N2O4-NO2 equilibrium mixture in the flask on...Ch. 15 - Formamide, used in the manufacture of...Ch. 15 - A mixture of 1.00 mol NaHCO2 (s) and 1.00 mol...Ch. 15 - Cadmium metal is added to 0.350 L of an aqueous...Ch. 15 - Lead metal is added to 0.100 M Cr2+(aq) . What are...Ch. 15 - One sketch below represents an initial...Ch. 15 - One sketch below represents an initial...Ch. 15 - One important reaction in the citric acid cycle is...Ch. 15 - The following reaction is an important reaction in...Ch. 15 - Refer to Example 15-2 H2S(g) at 747.6 mmHg...Ch. 15 - A sample of NH4HS(s) is placed in a 2.58L flask...Ch. 15 - The following reaction is used self-contained...Ch. 15 - Prob. 52ECh. 15 - Exactly 1.00 mol each of CO and Cl2 are introduced...Ch. 15 - For the reaction 2NO2(g)2NO(g)+O2(g),Kg=1.8108 at...Ch. 15 - Continuous removal of one of the products of a...Ch. 15 - We can represent the freezing of H2O(l) at 0C as...Ch. 15 - Explain how each of the following affects the...Ch. 15 - In the gas phase, iodine reacts with cyclopentene...Ch. 15 - The reaction N2(g)+O2(g)2NO(g),rH=+181kJmol-1 ,...Ch. 15 - Use data from Appendix D to determine whether the...Ch. 15 - If the volume of an equilibrium mixture of...Ch. 15 - For the reaction A(s)B(s)+2C(g)+12D(g)tH=0 Will Kc...Ch. 15 - What effect does increasing the volume of the...Ch. 15 - For which of the following reaction would you...Ch. 15 - The following reaction represents the binding of...Ch. 15 - In human body, the enzyme carbon anahydrase...Ch. 15 - A crystal of dinitrogen tetroxide (melting point,...Ch. 15 - When hydrogen iodide is heated, the degree...Ch. 15 - The standard enthalpy of reaction lot the...Ch. 15 - Would you expect at the amount of N2 to increase,...Ch. 15 - The equilibrium constant for the following...Ch. 15 - For the reaction C2H2(g)+3H2(g)2CH4(g) , the...Ch. 15 - The equilibrium constant for the following...Ch. 15 - The equilibrium constant for the following...Ch. 15 - Explain why the percent of molecules that...Ch. 15 - Prob. 76IAECh. 15 - Refer to Example 15-13g. Suppose that 0100 L of...Ch. 15 - In the equilibrium described in Example 15-12, the...Ch. 15 - Starting with SO2(g) at 1.00 atm, what will be the...Ch. 15 - A sample of a with a mole ratio of N2 to O2 , of...Ch. 15 - Derive, by calculation, the equilibrium amounts of...Ch. 15 - The decomposition of salicylic acid to phenol and...Ch. 15 - One of the key reaction in the gasification of...Ch. 15 - A sample of pure PCl2(g) is introduced into an...Ch. 15 - Prob. 85IAECh. 15 - Prob. 86IAECh. 15 - Show that in terms of mole fractions of gases and...Ch. 15 - For the synthesis of ammonia at 500 K,...Ch. 15 - Prob. 89IAECh. 15 - Prob. 90IAECh. 15 - Prob. 91IAECh. 15 - Concerning me reaction in Exercise 26 and the...Ch. 15 - For the reaction 2NO(g)+Cl2(g)2NOCl(g),Kz=3.7108...Ch. 15 - Prob. 94IAECh. 15 - Prob. 95IAECh. 15 - Prob. 96IAECh. 15 - Prob. 97IAECh. 15 - Prob. 98IAECh. 15 - Prob. 99FPCh. 15 - The decomposition of Hl(g) is represented by the...Ch. 15 - Prob. 101FPCh. 15 - Prob. 102FPCh. 15 - Prob. 103FPCh. 15 - Prob. 104SAECh. 15 - Prob. 105SAECh. 15 - Explain the important distinctions between each...Ch. 15 - In the reversible reaction H2(g)+l2(g)2Hl(g) , a...Ch. 15 - Equilibrium is established the reaction...Ch. 15 - The volume of the reaction vessel containing an...Ch. 15 - For the reaction 2NO2(g)=2NO(g)+O2(g),Kg=1.8108 at...Ch. 15 - For the dissociation reaction...Ch. 15 - The following data are given at...Ch. 15 - Equilibrium is established in the reversible...Ch. 15 - The Deacon process for producing chlorine gas fro,...Ch. 15 - For the reaction SO2(g)SO2(aq),K=1.25 at 25C ....Ch. 15 - In the reaction H2O2(g)H2O2(aq),K=1.0104 at 25C ....Ch. 15 - An equilibrium mixture of SO2 , SO2 , and O2 gases...Ch. 15 - Prob. 118SAE
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