GENERAL,ORGANIC, & BIOLOGICAL CHEM-ACCES
4th Edition
ISBN: 9781265982959
Author: SMITH
Publisher: MCG
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Textbook Question
Chapter 5, Problem 56P
Niacin, vitamin B3, is found in soybeans, which contain it naturally, and cereals,which are fortified with it.
a. What is the molecular formula of niacin?
b. What is the formula weight of niacin?
c. What is the molar mass of niacin?
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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 5 Solutions
GENERAL,ORGANIC, & BIOLOGICAL CHEM-ACCES
Ch. 5.1 - Use the molecular art to identify the process as a...Ch. 5.1 - Use the molecular art to identify the process as a...Ch. 5.1 - Label the reactants and products, and indicate how...Ch. 5.1 - One term in a balanced chemical equation contained...Ch. 5.2 - Write a balanced equation for each reaction....Ch. 5.2 - Write a balanced equation for the following...Ch. 5.2 - Write a balanced equation for the reaction of...Ch. 5.2 - Consider the decomposition of hydrogen peroxide...Ch. 5.2 - Balance each chemical equation. Al+H2SO4Al2(...Ch. 5.3 - Write a balanced equation for the reaction...
Ch. 5.3 - Classify each reaction as a combination or...Ch. 5.3 - Classify each reaction as a single replacement or...Ch. 5.3 - Classify each reaction as a combination,...Ch. 5.3 - Fill in the needed reactants or products for each...Ch. 5.4 - Identify the species that is oxidized and the...Ch. 5.4 - Identify the species that is oxidized and the...Ch. 5.4 - (a) Write a balanced equation for the reaction...Ch. 5.4 - Prob. 5.10PCh. 5.5 - How many items are contained in one mole of (a)...Ch. 5.5 - How many carbon atoms are contained in each of the...Ch. 5.5 - How many molecules are contained in each of the...Ch. 5.5 - How many moles of water contain each of the...Ch. 5.6 - Calculate the formula weight of each ionic...Ch. 5.6 - The unmistakable odor of a freshly cut cucumber is...Ch. 5.6 - Prob. 5.11PPCh. 5.6 - Calculate the number of grams contained in each of...Ch. 5.6 - How many moles are contained in each of the...Ch. 5.6 - How many moles are contained in a 1,000.-mg dose...Ch. 5.6 - How many molecules are contained in two 500.-mg...Ch. 5.7 - Use the balanced equation for the reaction of N2...Ch. 5.7 - Use the balanced equation in Sample Problem 5.15...Ch. 5.8 - Prob. 5.16PPCh. 5.8 - Using the balanced equation for the combustion of...Ch. 5.8 - Prob. 5.17PPCh. 5.8 - Use the balanced equation, N2+O22NO, to answer the...Ch. 5.9 - What is the percent yield of X in a reaction that...Ch. 5.9 - Using the chemical equation in Sample Problem...Ch. 5.9 - Using the equation in Sample Problem 5.20, answer...Ch. 5.9 - The synthetic antiviral drug Tamiflu, currently...Ch. 5.10 - Consider the reaction of hydrogen and nitrogen to...Ch. 5.10 - Using the balanced equation for the reaction of H2...Ch. 5.10 - Using the balanced equation, 3H2(g)+N2(g)2NH3(g),...Ch. 5.10 - Using Sample Problem 5.21 as a guide, complete the...Ch. 5.10 - Using the balanced equation, N2(g)+O2(g)2NO(g),...Ch. 5.10 - Prob. 5.24PPCh. 5 - Prob. 23PCh. 5 - Prob. 24PCh. 5 - How many atoms of each element are drawn on each...Ch. 5 - How many atoms of each element are drawn on each...Ch. 5 - Use the molecular art to write a balanced equation...Ch. 5 - Use the molecular art to write a balanced equation...Ch. 5 - Use the molecular art to write a balanced equation...Ch. 5 - Some coal is high in sulfur (S) content, and when...Ch. 5 - Balance each equation. a....Ch. 5 - Balance each equation. a....Ch. 5 - Prob. 33PCh. 5 - Prob. 34PCh. 5 - Prob. 35PCh. 5 - Prob. 36PCh. 5 - For the reaction depicted in the molecular art:...Ch. 5 - Answer the questions in Problem 5.37 for the...Ch. 5 - Prob. 39PCh. 5 - Prob. 40PCh. 5 - Classify the reaction depicted in the molecular...Ch. 5 - Classify the reaction depicted in the molecular...Ch. 5 - Classify each reaction as combination,...Ch. 5 - Classify each reaction as combination,...Ch. 5 - Fill in the needed reactant or product for each of...Ch. 5 - Fill in the needed reactant or product for each of...Ch. 5 - Identify the species that is oxidized and the...Ch. 5 - Identify the species that is oxidized and the...Ch. 5 - Prob. 49PCh. 5 - Rechargeablenickel-cadmium batteries are used in...Ch. 5 - The reaction of hydrogen (H2) with acetylene...Ch. 5 - Prob. 52PCh. 5 - Calculate the formula weight and molar mass of...Ch. 5 - Calculate the formula weight and molar mass of...Ch. 5 - L-Dopa is a drug used to treat Parkinson’s...Ch. 5 - Niacin, vitamin B3, is found in soybeans, which...Ch. 5 - Which quantity has the greater mass? 1 mol of Fe...Ch. 5 - Prob. 58PCh. 5 - Mescaline is a hallucinogen in peyote, a cactus...Ch. 5 - Prob. 60PCh. 5 - How many grams are contained in 5.00 mol of each...Ch. 5 - How many grams are contained in 0.50 mol of each...Ch. 5 - A bottle of the pain reliever ibuprofen (C13H18O2,...Ch. 5 - One dose of Maalox contains 500. mg each of...Ch. 5 - How many moles are contained in each number of...Ch. 5 - How many moles are contained in each number of...Ch. 5 - How many molecules of butane (C4H10) are contained...Ch. 5 - Prob. 68PCh. 5 - The average nicotine (C10H14N2, molar mass 162.3...Ch. 5 - How many moles of sucrose...Ch. 5 - What is the mass in grams of each quantity of...Ch. 5 - What is the mass in grams of each quantity of...Ch. 5 - Using the balanced equation for the combustion of...Ch. 5 - Sodium metal (Na) reacts violently when added to...Ch. 5 - Prob. 75PCh. 5 - Using the balanced equation for the reaction of Na...Ch. 5 - What is the percent yield of B in a reaction that...Ch. 5 - What is the percent yield of B in a reaction that...Ch. 5 - The reaction of methane (CH4) with Cl2forms...Ch. 5 - Methanol (CH4O), which is used as a fuel in...Ch. 5 - Consider the given reaction mixture that contains...Ch. 5 - Consider the reaction of A2 and B2 to form A2B,...Ch. 5 - Prob. 83PCh. 5 - Consider the reaction with the balanced equation,...Ch. 5 - Using the balanced equation, 2NO+O22NO2, determine...Ch. 5 - Prob. 86PCh. 5 - Prob. 87PCh. 5 - Completer the followin table using the given...Ch. 5 - The local anesthetic ethyl chloride...Ch. 5 - The solvent dischloromethane...Ch. 5 - Answer the following questions about the...Ch. 5 - Answer the following questions about diethyl ether...Ch. 5 - Prob. 93PCh. 5 - Prob. 94PCh. 5 - Prob. 95PCh. 5 - Prob. 96PCh. 5 - TCDD, also called dioxin...Ch. 5 - Prob. 98CP
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- Nonearrow_forwardPart II. Given below are the 'H-NMR spectrum at 300 MHz in CDC13 and mass spectrum using electron ionization of compound Brian. The FTIR of the said compound showed a strong peak at 1710 cm"). Determine the following: (a) molecular Formula and Degree of unsaturation of compound Brian (b) Basing on the given H-NMR spectrum tabulate the following (i) chemical shifts (ii) integration, ciii) multiplicity and (iv) interferences made for each signal (c) Draw the structure of compound Brian. ) ΕΙ 43 41 27 71 114 (M+) Hmmm 20 30 40 50 60 70 80 90 100 110 120 1H NMR spectrum 300 MHz in CDCl3 2.0 alle 1.0arrow_forwardThe iron-iron carbide phase diagram. In the diagram, the letter L indicates that it is a liquid. Indicate what its components are. Temperature (°C) 1600 10 Composition (at% C) 15 25 1538°C -1493°C 8 1400 1200 1394°C y+L L 2500 1147°C y. Austenite 2.14 4.30 2000 1000 912°C y + Fe3C 800ㅏ 0.76 0.022 600 a, Ferrite a + Fe3C 400 0 (Fe) Composition (wt% C) 727°C 1500 Cementite (Fe3C) 1000 6 6.70 Temperature (°F)arrow_forward
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