LCPO CHEMISTRY W/MODIFIED MASTERING
8th Edition
ISBN: 9780135214756
Author: Robinson
Publisher: PEARSON
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Chapter 3, Problem 3.65SP
Ethylene gas,
(a) How many grams of ethylene are needed to react with0.133 mol of
(b) How many grams of water are needed to react with0.371 mol of ethylene? I-low many grams of ethyl alcohol will result?
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Complete the following table. The only density needed is already given. Show your
calculations in a neat and easy-to-follow manner in the space below the table. All units
should be included and significant figures should be given close attention. Be sure to notice
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mass of the product should in milligrams rather than grams.
LOCH 3
+
H2SO4
HNO 3
O=C-OCH 3
NO2
x
H₂O
F.W.
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amount
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in H2SO4
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Kumada Coupling:
1. m-Diisobutylbenzene below could hypothetically be synthesized by Friedel-Crafts reaction. Write out the reaction with a
mechanism and give two reasons why you would NOT get the desired product.
Draw the reaction (NOT a mechanism) for a Kumada coupling to produce the molecule above from m-dichlorobenzene.
Calculate the theoretical yield for the reaction in question 2 using 1.5 g of p-dichlorobenzene and 3.0 mL isobutyl bromide.
What signals appeared/disappeared/shifted that indicate that you have your intended product and not starting material? What
other impurities are present in your product and how do you know?
Wintergreen from Aspirin:
1. In isolating the salicylic acid, why is it important to press out as much of the water as possible?
2. Write the mechanism of the esterification reaction you did.
3.
What characteristic absorption band changes would you expect in the IR spectrum on going from aspirin to salicyclic acid and
then to methyl salicylate as you did in the experiment today? Give approximate wavenumbers associated with each functional
group change.
What signals appeared/disappeared/shifted that indicate that you have your intended product and not starting material? What
other impurities are present in your product and how do you know?
Chapter 3 Solutions
LCPO CHEMISTRY W/MODIFIED MASTERING
Ch. 3 - Prob. 3.1PCh. 3 - If blue spheres represent nitrogen atoms and red...Ch. 3 - Prob. 3.3PCh. 3 - APPLY 3.4 The major ingredient in ordinary safety...Ch. 3 - Calculate the molecular weight of sulfuric acid...Ch. 3 - Conceptual APPLY 3.6 Use the structural formula of...Ch. 3 - PRACTICE 3.7 How many moles arc in 5.26 g of...Ch. 3 - APPLY 3.8 When a diabetic experiences low blood...Ch. 3 - PRACTICE 3.9 Aspirin is prepared by reaction...Ch. 3 - APPLY 3.10 Refer to the balanced reaction for the...
Ch. 3 - PRACTICE 3.11 Ethyl alcohol is prepared...Ch. 3 - APPLY 3.12 (a) Diethyl ether (C4H10O), the “ether”...Ch. 3 - Conceptual PRACTICE 3.13 The following diagram...Ch. 3 - Conceptual APPLY 3.14 Draw a diagram similar to...Ch. 3 - Lithium oxide is used aboard the space shuttle to...Ch. 3 - APPLY 3.16 After lithium hydroxide is produced...Ch. 3 - PRACTICE 3.17 What is the empirical formula of the...Ch. 3 - Conceptual APPLY 3.19 Use the structural formula...Ch. 3 - PRACTICE 3.20 Menthol, a flavouring agent obtained...Ch. 3 - PRACTICE 321 Combustion analysis is performed on...Ch. 3 - PRACTICE 3.23 A compound has an empirical formula...Ch. 3 - APPLY 3.24 Combustion analysis was performed on...Ch. 3 - Prob. 3.23PCh. 3 - Match the terms percent yield and percent atom...Ch. 3 - Examine two reactions important in chemical...Ch. 3 - Propene is a raw material for a wide variety of...Ch. 3 - Ibuprofen (the active ingredient in the...Ch. 3 - The original synthesis for ibuprofen, developed in...Ch. 3 - The reaction of A (red spheres) with B (blue...Ch. 3 - The diagrams represent a reaction on the molecular...Ch. 3 - Fluoxetine, marketed as an antidepressant under...Ch. 3 - The following diagram represents the reaction of...Ch. 3 - What is the percent composition of cysteine, one...Ch. 3 - Cytosine, a constituent of deoxyribonucleic acid...Ch. 3 - A hydrocarbon of unknown formula CxHy was...Ch. 3 - Which of the following equations are balanced? (a)...Ch. 3 - Which of the following equations are balanced?...Ch. 3 - Balance the following equations: (a)...Ch. 3 - Balance the following equations: (a) The explosion...Ch. 3 - Balance the following equations: (a)...Ch. 3 - Balance the following equations:...Ch. 3 - Balance the following equations. (a)...Ch. 3 - Balance the following equations. (a) CO(...Ch. 3 - What are the molecular (formula) weights of the...Ch. 3 - What are the formulas of the following substances?...Ch. 3 - What are the molecular weights of the following...Ch. 3 - Prob. 3.47SPCh. 3 - How many grams are in a mole of each of the...Ch. 3 - Prob. 3.49SPCh. 3 - How many moles of ions are in 27.5 g of MgCl2?Ch. 3 - How many moles of anions are in 35.6 g of AlF3?Ch. 3 - What is the molecular weight of chloroform if...Ch. 3 - What is the molecular weight of cholesterol if...Ch. 3 - 3.52 Iron (II) sulfate, FeSO4, is prescribed for...Ch. 3 - Prob. 3.55SPCh. 3 - An average cup of coffee contains about 125 mg of...Ch. 3 - Prob. 3.57SPCh. 3 - A sample that weighs 25.12 g contains 6.0221023...Ch. 3 - Prob. 3.59SPCh. 3 - Prob. 3.60SPCh. 3 - Prob. 3.61SPCh. 3 - In the preparation of iron from hematite, Fe2O3...Ch. 3 - An alternative method for preparing pure iron from...Ch. 3 - Magnesium metal burns in oxygen to form...Ch. 3 - Ethylene gas, C2H4 , reacts with water at high...Ch. 3 - Prob. 3.66SPCh. 3 - Titanium dioxide (TiO2) , the substance used as...Ch. 3 - Prob. 3.68SPCh. 3 - Aluminum reacts with oxygen to yield aluminum...Ch. 3 - The industrial production of hydriodic acid takes...Ch. 3 - An alternative method for producing hydriodic acid...Ch. 3 - Nickel(II) sulfate, used for nickel plating, is...Ch. 3 - Hydrazine, N2H4 , once used as a rocket...Ch. 3 - Assume that you have 1.39 mol of H2 and 3.44 mol...Ch. 3 - Hydrogen and chlorine react to yield hydrogen...Ch. 3 - How many grams of the dry-cleaning solvent...Ch. 3 - How many grams of each product result from the...Ch. 3 - Limestone (CaCO3) reacts with hydrochloric acid...Ch. 3 - Sodium azide (NaN3) yields N2 gas when heated to...Ch. 3 - Acetic acid (CH3CO2H) reacts with isopentyl...Ch. 3 - Cisplatin [Pt( NH 3)2Cl2] , a compound used in...Ch. 3 - If 1.87 g of acetic acid (CH3COOH) reacts with...Ch. 3 - If 3.42 g of K2PtCl4 and 1.61 g of NH3 give 2.08 g...Ch. 3 - The reaction of tungsten hexachloride (WCl6) with...Ch. 3 - Sodium borohydride, NaBH4 , a substance used in...Ch. 3 - Urea, a substance commonly used as a fertilizer,...Ch. 3 - Calculate the mass percent composition of each of...Ch. 3 - What are the empirical formulas of substances with...Ch. 3 - Ferrocene, a substance proposed for use as a...Ch. 3 - What is the empirical formula of stannous...Ch. 3 - What are the empirical formulas of each of the...Ch. 3 - An unknown liquid is composed of 5.57% 11, 28.01 %...Ch. 3 - An unknown liquid is composed of 34.31% C, 5.28%...Ch. 3 - Combustion analysis of 45.62 mg of toluene, a...Ch. 3 - Coniine, a toxic substance isolated from poison...Ch. 3 - Cytochrome c is an iron—containing enzyme found in...Ch. 3 - Nitrogen fixation in the root nodules of peas and...Ch. 3 - Disilane, Si2Hx, is analyzed and found to contain...Ch. 3 - A certain metal sulfide, MS2, is used extensively...Ch. 3 - Combustion analysis of a 31.472 mg sample of the...Ch. 3 - The stimulant amphetamine contains only carbon,...Ch. 3 - Prob. 3.102SPCh. 3 - Prob. 3.103SPCh. 3 - Prob. 3.104SPCh. 3 - Prob. 3.105SPCh. 3 - Prob. 3.106SPCh. 3 - Prob. 3.107SPCh. 3 - Prob. 3.108MPCh. 3 - The molar mass of HCl is 36.5 g/mol, and the...Ch. 3 - Assume that gasoline has the formula C8H18 and has...Ch. 3 - Compound X contains only carbon, hydrogen,...Ch. 3 - Prob. 3.112MPCh. 3 - A certain alcoholic beverage contains only ethanol...Ch. 3 - A mixture of FeO and Fe2O3 with a mass of 10.0 g...Ch. 3 - Prob. 3.115MPCh. 3 - When eaten, dietary carbohydrates are digested to...Ch. 3 - Prob. 3.117MPCh. 3 - Prob. 3.118MPCh. 3 - A mixture of XCl3 and XCl5 weighing 10.00 g...Ch. 3 - Ammonium nitrate, a potential ingredient of...Ch. 3 - Window glass is typically made by mixing soda ash...Ch. 3 - Prob. 3.122MPCh. 3 - Ethylene glycol, commonly used as automobile...Ch. 3 - Prob. 3.124MP
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