Module 4 Problem Set_ Principles of Organic Chemistry with Lab-2021-Gallaher
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Module 4 Problem Set: Principles of Organic Chemistry with Lab-2021-Gallaher
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Module 4 Problem Set
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Questions
13
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Question 1
Your Answer:
Explain the difference between
alkyl
and
aryl
halides.
Alkyl:
Alkyl
halides are aliphatic hydrocarbons that possess one or more
halogen atom substituents.
Aryl:
Aryl
halides are aromatic hydrocarbons (benzene rings) with one or
more halogen atoms attached to the ring.
Answer:
Alkyl halides are aliphatic hydrocarbons that possess one or
more halogen atom substituents. Aryl halides are aromatic
hydrocarbons (benzene rings) with one or more halogen
atoms attached to the ring.
12/14/23, 8:43 PM
Module 4 Problem Set: Principles of Organic Chemistry with Lab-2021-Gallaher
https://portagelearning.instructure.com/courses/1430/quizzes/35810?module_item_id=151520
2/13
0 / 0 pts
Question 2
Your Answer:
On a piece of paper, write a structure corresponding to each of the
following and then generate the IUPAC name for each.
a. A primary alkyl chloride with MF C
H Cl
b. A secondary alkyl iodide with MF C
H I
c. A tertiary alkyl bromide with MF C
H
Br
3
7
4
9
5
11
A. 1-chloropropane
B. 2-iodobutane
C. 2-bromo-2-methylbutane
0 / 0 pts
Question 3
Name each of the following using the IUPAC systematic nomenclature
methodology. Include stereochemical designations of cis or trans where
appropriate.
12/14/23, 8:43 PM
Module 4 Problem Set: Principles of Organic Chemistry with Lab-2021-Gallaher
https://portagelearning.instructure.com/courses/1430/quizzes/35810?module_item_id=151520
3/13
A.
trans-1-chloro-2-methy
Correct!
Correct!
B.
4-bromo-1,2-dichlorohe
Correct!
Correct!
C.
2-fluoro-3-methylbutan
Correct!
Correct!
D.
1,3-dichlorobenzene
Correct!
Correct!
E.
2-iodo-2-methyloctane
Correct!
Correct!
0 / 0 pts
Question 4
Classify each alkyl halide as primary, secondary, or tertiary:
12/14/23, 8:43 PM
Module 4 Problem Set: Principles of Organic Chemistry with Lab-2021-Gallaher
https://portagelearning.instructure.com/courses/1430/quizzes/35810?module_item_id=151520
4/13
Your Answer:
A. secondary
B. tertiary
C. secondary
D. primary
Answer:
A. Secondary
B. Tertiary
C. Secondary
D. Primary
0 / 0 pts
Question 5
Your Answer:
Define the terms
nucleophile
,
substrate
, and
leaving group
.
The
substrate
is the molecule on which the substitution occurs.
A
leaving group
is an atom (or group of atoms) that is replaced by
another when the substitution occurs
A
nucleophile
is a chemical species that seeks positive charge
(nucleo = nucleus/positive charge, phile = love).
12/14/23, 8:43 PM
Module 4 Problem Set: Principles of Organic Chemistry with Lab-2021-Gallaher
https://portagelearning.instructure.com/courses/1430/quizzes/35810?module_item_id=151520
5/13
Answer:
The
substrate
is the molecule on which the substitution occurs.
A
leaving group
is an atom (or group of atoms) that is replaced by
another when the substitution occurs.
A
nucleophile
is a chemical species that seeks positive charge
(nucleo = nucleus/positive charge, phile = love).
0 / 0 pts
Question 6
Your Answer:
Explain why nucleophiles attack the carbon that bears the halogen atom
during a nucleophilic substitution reaction of an alkyl halide.
The oxygen molecule has a + charge, which the nucleophiles love.
Answer:
The polarization of the carbon-halogen bond in an alkyl halide
makes the carbon electron-deficient and, as a result, gives it a
slight positive charge (as well as a slight negative charge on
the halogen correspondingly). The nucleophile (positive-
charge lover) is thus attracted to the electron-deficient
carbon.
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45.3 g of magnesium sulfate heptahydrate is heated in an oven until all the water is driven off. What is the mass of the anhydrous
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21.5 g
23.8 g
22.1 g (Correct answer)
23.2 g
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List the following compounds from highest boiling to lowest boiling:
Rank the compounds from highest boiling to lowest boiling. To rank items as equivalent, overlap them.
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OH
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H
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The drawing below shows a mixture of molecules:
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chlorine
Suppose the following chemical reaction can take place in this mixture:
CO(g)+2 H,(9) → CH,OH(9)
Of which reactant are there the most initial moles? Enter its chemical formula:
Of which reactant are there the least initial moles? Enter its chemical formula:
Which reactant is the limiting reactant? Enter its chemical formula:
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under these conditions.
Calculate the mole fraction and partial pressure of each gas, and the total pressure in the tank. Round each of your answers to 3 significant digits.
圖
mole fraction:
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partial pressure:
| atm
mole fraction:
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partial pressure:
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injection volume (ul)
elution time (time)
peak DAD signal(mAU)
caffeine
1
1
4.67
302.85
aspartame
5
1
7.53
15.83
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1
1
8.14
89.98
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1
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stationary phase has varying concentration
stationary phase has static concentration
mobile phase has varying concentration
mobile phase has static concentration
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Descriptives
Bronchial reactivity
95% Confidence Interval for
Mean
Mean
Std. Deviation
Std. Error
Lower Bound Upper Bound
Minimum
Maximum
Sulfur dioxide
6.806
5
18.840
9.6919
4.3344
30.874
5.1
30.1
Nitrous dioxide
6
6.617
3.9448
1.6105
2.477
10.757
2.2
11.9
Oxygen
4
4.975
3.4092
1.7046
-450
10.400
2.1
9.3
Total
15
10.253
8.6514
2.2338
5.462
15.044
2.1
30.1
ANOVA
Bronchial reactivity
Sum of
Squares
dr
Mean Square
F
Sig.
Between Groups
559.450
2
279.725
6.873
.010
Within Groups
488.408
12
40.701
Total
1047.857
14
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Ba(NO,l(aq) + K,SOlaq) Baso(s) + 2 KNOlaq)
Volume
Volume
Trial 0.10 M Ba(NO)2 (ml)
0.10 M K,SO, (ml)
Mass Baso4 (s)
Limiting Reagent
50.
20.
0.46
50.
40.
0.92
3
50.
50.
1.15
4
50.
60.
1.15
50.
80.
1.15
• Question 8
Use the data to identify the limiting reagent for each reaction performed.
V Trail 1
a. Neither/Both
EV Trial 2
b. Baso4
EV Trial 3
C. KSO4
EV Trial 4
d. Ba(NO3)2
EV Trial 5
e. KNO3
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Why is the amount of precipitate in the Data Table above the same in Trials 3 through 5?
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1. Calculate the mass percent of water for the hydrate, LINO,-3H;O.
2. What will be the probable effect if you kept the crucible completely covered during the entire
heating and cooling processes? Would your calculated percent water in the hydrate be high, low, or
unaffected? Explain.
3. If 2.752 g sample of Ca(NO:); XH;O is heated to constant mass, the residue weighs 1.941 g.
Determine the value of x and the formula of the hydrate.
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If 35.45 mL of 0.8121 M sodium carbonate solution reacts with excess lead (III)
nitrate solution to form aqueous sodium nitrate and solid lead (III) carbonate, how
many grams of lead (III) carbonate is formed?
On your paper with your name and date:
1. Go from ionic compound name to formula (review Chp 5 as much as needed)
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3. Do the calculation showing ALL units, just like I did in solution stoichiometry
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26) The floor tiles in SE 27 are about 1 square foot and the lab is about 25 tiles wide and about
36 tiles from front to back. When the emergency shower was demonstrated, in 10. seconds
the water in the trash can was about 1 foot deep. One student estimated this was 2.5 gallons.
Estimate how deep the room will get in inches after a 15 minute shower. List 3 simplifving
assumptions you make in this calculation
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