CHEMISTRY:PRIN.+REACTIONS-OWLV2 ACCESS
8th Edition
ISBN: 9781305079298
Author: Masterton
Publisher: Cengage Learning
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Textbook Question
Chapter 1, Problem 20QAP
Round off the following quantities to the indicated number of significant figures.
(a) 17.2509 cm (4 significant figures)
(b) 168.51 1b (3 significant figures)
(c) 500.22 °C (3 significant figures)
(d) 198.500 oz (3 significant figures)
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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 1 Solutions
CHEMISTRY:PRIN.+REACTIONS-OWLV2 ACCESS
Ch. 1 - Classify each of the following as element,...Ch. 1 - Classify each of the following as element,...Ch. 1 - Classify the following as solution or...Ch. 1 - Classify the following as solution or...Ch. 1 - Prob. 5QAPCh. 1 - Prob. 6QAPCh. 1 - Write the symbol for the following elements. (a)...Ch. 1 - Prob. 8QAPCh. 1 - Write the name of the element represented by the...Ch. 1 - Write the name of the element represented by the...
Ch. 1 - What instrument would you use to determine (a) the...Ch. 1 - What instrument would you use to (a) measure the...Ch. 1 - A glass of lukewarm milk is suggested for people...Ch. 1 - A recipe for apple pie calls for a preheated 350F...Ch. 1 - Gallium is one of the few metals that can melt at...Ch. 1 - Computers are not supposed to be in very warm...Ch. 1 - How many significant figures are in each of the...Ch. 1 - How many significant figures are there in each of...Ch. 1 - Round off the following quantities to the...Ch. 1 - Round off the following quantities to the...Ch. 1 - Prob. 21QAPCh. 1 - Prob. 22QAPCh. 1 - Which of the following statements use only exact...Ch. 1 - Which of the following statements use only exact...Ch. 1 - A basketball game at the University of...Ch. 1 - A listing of a house for sale states that there...Ch. 1 - Calculate the following to the correct number of...Ch. 1 - Perform the indicated calculations. Write your...Ch. 1 - Prob. 29QAPCh. 1 - The volume of a square pyramid is (1/3)Bh where B...Ch. 1 - Write the appropriate symbol in the blank (,,or=)....Ch. 1 - Write the appropriate symbol in the blank (,,or=)....Ch. 1 - Convert 22.3 mL to (a) liters (b) in3 (c) quartsCh. 1 - Convert 0.2156 L to (a) mL (b) in3 (c) quartsCh. 1 - The height of a horse is usually measured in...Ch. 1 - At sea, distances are measured in nautical miles...Ch. 1 - The unit of land measure in the English system is...Ch. 1 - A gasoline station in Manila, Philippines, charges...Ch. 1 - A lap in most tracks in the United States is 0.25...Ch. 1 - Cholesterol in blood is measured in milligrams of...Ch. 1 - Prob. 41QAPCh. 1 - The area of the 48 contiguous states is 3.02106...Ch. 1 - Prob. 43QAPCh. 1 - In the old pharmaceutical system of measurements,...Ch. 1 - The cup is a measure of volume widely used in...Ch. 1 - The egg whites from four large eggs occupy a...Ch. 1 - A metal slug weighing 25.17 g is added to a flask...Ch. 1 - A solid with an irregular shape and a mass of 11.3...Ch. 1 - A waterbed filled with water has the dimensions...Ch. 1 - Wire is often sold in pound spools according to...Ch. 1 - Air is 21% oxygen by volume. Oxygen has a density...Ch. 1 - The unit for density found in many density tables...Ch. 1 - Magnesium sulfate (MgSO4) has a solubility of 38.9...Ch. 1 - Potassium sulfate has a solubility of 15 g/ 100 g...Ch. 1 - Sodium bicarbonate (baking soda) is commonly use...Ch. 1 - Magnesium chloride is an important coagulant used...Ch. 1 - The solubility of lead nitrate at 100C is 140.0...Ch. 1 - Radiation exposure to human beings is usually...Ch. 1 - The following data refer to the element...Ch. 1 - A supersaturated sugar solution (650.0 g sugar in...Ch. 1 - The density of wind-packed snow is estimated to be...Ch. 1 - The dimensions of aluminum foil in a box for sale...Ch. 1 - The Kohinoor Diamond (d=3.51g/cm3) is 108 carats....Ch. 1 - A pycnometer is a device used to measure density....Ch. 1 - Prob. 65QAPCh. 1 - Label each of the properties of iodine as...Ch. 1 - How do you distinguish (a) chemical properties...Ch. 1 - What is the difference between (a) mass and...Ch. 1 - Mercury, ethyl alcohol, and lead are poured into a...Ch. 1 - How many significant figures are there in the...Ch. 1 - Consider the following solubility graph. (a) At...Ch. 1 - Given the following solubility curves, answer the...Ch. 1 - A Different civilization on a distant planet has...Ch. 1 - At what point is the temperature in F exactly...Ch. 1 - Prob. 75QAPCh. 1 - A laboratory experiment requires 12.0 g of...Ch. 1 - An average adult breathes about 8.50103 L of air...Ch. 1 - A student determines the density of a metal by...
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