General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN: 9781305580343
Author: Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher: Cengage Learning
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Textbook Question
Chapter 5.3, Problem 5.7E
Calculate the density of helium, He, in grams per liter at 21°C and 752 mmHg. The density of air under these conditions is 1.188 g/L. What is the difference in mass between l liter of air and 1 liter of helium? (This mass difference is equivalent to the buoyant, or lifting, force of helium per liter.)
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Part II. Given two isomers: 2-methylpentane (A) and 2,2-dimethyl butane (B) answer the following:
(a) match structures of isomers given their mass spectra below (spectra A and spectra B)
(b) Draw the fragments given the following prominent peaks from
each spectrum:
Spectra A m/2 =43 and 1/2-57
spectra B m/2 = 43
(c) why is 1/2=57 peak in spectrum A more intense compared
to the same peak in spectrum B.
Relative abundance
Relative abundance
100
A
50
29
29
0
10
-0
-0
100
B
50
720
30
41
43
57
71
4-0
40
50
60 70
m/z
43
57
8-0
m/z = 86
M
90 100
71
m/z = 86
M
-O
0
10 20 30
40 50
60
70
80
-88
m/z
90
100
Part IV. C6H5 CH2CH2OH is an aromatic compound which was subjected to Electron Ionization - mass
spectrometry (El-MS) analysis. Prominent m/2 values: m/2 = 104 and m/2 = 9) was obtained.
Draw the structures of these fragments.
For each reaction shown below follow the curved arrows to complete each equationby showing the structure of the products. Identify the acid, the base, the conjugated acid andconjugated base. Consutl the pKa table and choose the direciton theequilibrium goes. However show the curved arrows. Please explain if possible.
Chapter 5 Solutions
General Chemistry - Standalone book (MindTap Course List)
Ch. 5.1 - A gas in a container had a measured pressure of 57...Ch. 5.1 - Prob. 5.1CCCh. 5.2 - A volume of carbon dioxide gas, CO2, equal to 20.0...Ch. 5.2 - If you expect a chemical reaction to produce 4.38...Ch. 5.2 - A balloon contains 5.41 dm3 of helium, He, at 24C...Ch. 5.2 - Prob. 5.2CCCh. 5.3 - Prob. 5.5ECh. 5.3 - Prob. 5.6ECh. 5.3 - Calculate the density of helium, He, in grams per...Ch. 5.3 - A sample of a gaseous substance at 25C and 0.862...
Ch. 5.3 - Prob. 5.3CCCh. 5.4 - How many liters of chlorine gas, Cl2, can be...Ch. 5.5 - A 10.0-L flask contains 1.031 g O2 and 0.572 g CO2...Ch. 5.5 - A flask equipped with a valve contains 3.0 mol of...Ch. 5.5 - Prob. 5.11ECh. 5.6 - Prob. 5.5CCCh. 5.7 - What is the rms speed (in m/s) of a carbon...Ch. 5.7 - At what temperature do hydrogen molecules, H2,...Ch. 5.7 - Prob. 5.14ECh. 5.7 - If it takes 4.67 times as long for a particular...Ch. 5.7 - Prob. 5.6CCCh. 5.8 - Prob. 5.16ECh. 5.8 - Prob. 5.7CCCh. 5 - Prob. 5.1QPCh. 5 - Prob. 5.2QPCh. 5 - Prob. 5.3QPCh. 5 - Prob. 5.4QPCh. 5 - The volume occupied by a gas depends linearly on...Ch. 5 - Prob. 5.6QPCh. 5 - Prob. 5.7QPCh. 5 - Prob. 5.8QPCh. 5 - Prob. 5.9QPCh. 5 - Prob. 5.10QPCh. 5 - Prob. 5.11QPCh. 5 - Prob. 5.12QPCh. 5 - Prob. 5.13QPCh. 5 - Prob. 5.14QPCh. 5 - Prob. 5.15QPCh. 5 - Prob. 5.16QPCh. 5 - Prob. 5.17QPCh. 5 - Prob. 5.18QPCh. 5 - Prob. 5.19QPCh. 5 - Prob. 5.20QPCh. 5 - Under what conditions does the behavior of a real...Ch. 5 - Prob. 5.22QPCh. 5 - Prob. 5.23QPCh. 5 - Prob. 5.24QPCh. 5 - Prob. 5.25QPCh. 5 - A 1-liter container is filled with 2.0 mol Ar, 2.0...Ch. 5 - Prob. 5.27QPCh. 5 - Prob. 5.28QPCh. 5 - Prob. 5.29QPCh. 5 - Prob. 5.30QPCh. 5 - Prob. 5.31QPCh. 5 - A 3.00-L flask containing 2.0 mol of O2 and 1.0...Ch. 5 - Prob. 5.33QPCh. 5 - Two identical He-filled balloons, each with a...Ch. 5 - You have a balloon that contains O2. What could...Ch. 5 - Prob. 5.36QPCh. 5 - Prob. 5.37QPCh. 5 - The barometric pressure measured outside an...Ch. 5 - Prob. 5.39QPCh. 5 - You fill a balloon with helium gas to a volume of...Ch. 5 - Prob. 5.41QPCh. 5 - Prob. 5.42QPCh. 5 - A McLeod gauge measures low gas pressures by...Ch. 5 - If 456 dm3 of krypton at 101 kPa and 21C is...Ch. 5 - A sample of nitrogen gas at 17C and 760 mmHg has a...Ch. 5 - Prob. 5.46QPCh. 5 - Helium gas, He, at 22C and 1.00 atm occupied a...Ch. 5 - Prob. 5.48QPCh. 5 - A vessel containing 39.5 cm3 of helium gas at 25C...Ch. 5 - A sample of 62.3 cm3 of argon gas at 18C was...Ch. 5 - A bacterial culture isolated from sewage produced...Ch. 5 - Pantothenic acid is a B vitamin. Using the Dumas...Ch. 5 - In the presence of a platinum catalyst, ammonia,...Ch. 5 - Methanol, CH3OH, can be produced in industrial...Ch. 5 - Prob. 5.55QPCh. 5 - Prob. 5.56QPCh. 5 - A cylinder of oxygen gas contains 91.3 g O2. If...Ch. 5 - In an experiment, you fill a heavy-walled 6.00-L...Ch. 5 - Prob. 5.59QPCh. 5 - According to your calculations, a reaction should...Ch. 5 - Prob. 5.61QPCh. 5 - A 2.50-L flask was used to collect a 5.65-g sample...Ch. 5 - What is the density of ammonia gas, NH3, at 31C...Ch. 5 - Calculate the density of hydrogen sulfide gas,...Ch. 5 - Butane, C4H10, is an easily liquefied gaseous...Ch. 5 - Chloroform, CHCl3, is a volatile (easily...Ch. 5 - A chemist vaporized a liquid compound and...Ch. 5 - You vaporize a liquid substance at 100C and 755...Ch. 5 - A 2.56-g sample of a colorless liquid was...Ch. 5 - A 2.30-g sample of white solid was vaporized in a...Ch. 5 - Ammonium chloride, NH4Cl, is a while solid. When...Ch. 5 - Prob. 5.72QPCh. 5 - Calcium carbide reacts with water to produce...Ch. 5 - Magnesium metal reacts with hydrochloric acid to...Ch. 5 - Lithium hydroxide, LiOH, is used in spacecraft to...Ch. 5 - Magnesium burns in air to produce magnesium oxide,...Ch. 5 - Urea, NH2CONH2, is a nitrogen fertilizer that is...Ch. 5 - Nitric acid is produced from nitrogen monoxide,...Ch. 5 - Ammonium sulfate is used as a nitrogen and sulfur...Ch. 5 - Sodium hydrogen carbonate is also known as baking...Ch. 5 - Calculate the total pressure (in atm) of a mixture...Ch. 5 - Calculate the total pressure (in atm) of a mixture...Ch. 5 - A 900.0-mL flask contains 1.16 mg O2 and 0.42 mg...Ch. 5 - The atmosphere in a sealed diving bell contained...Ch. 5 - Prob. 5.85QPCh. 5 - Prob. 5.86QPCh. 5 - Formic acid, HCHO2, is a convenient source of...Ch. 5 - An aqueous solution of ammonium nitrite, NH4NO2,...Ch. 5 - Prob. 5.89QPCh. 5 - Calculate the rms speed of Br2 molecules at 23C...Ch. 5 - Uranium hexafluoride, UF6, is a white solid that...Ch. 5 - For a spacecraft or a molecule to leave the moon,...Ch. 5 - Prob. 5.93QPCh. 5 - At what temperature does the rms speed of O2...Ch. 5 - Prob. 5.95QPCh. 5 - Prob. 5.96QPCh. 5 - Prob. 5.97QPCh. 5 - Prob. 5.98QPCh. 5 - If 4.83 mL of an unknown gas effuses through a...Ch. 5 - A given volume of nitrogen, N2, required 68.3 s to...Ch. 5 - Calculate the pressure of ethanol vapor,...Ch. 5 - Calculate the pressure of water vapor at 120.0C if...Ch. 5 - Calculate the molar volume of ethane at 1.00 atm...Ch. 5 - Calculate the molar volume of oxygen at 1.00 atm...Ch. 5 - A glass tumbler containing 243 cm3 of air at 1.00 ...Ch. 5 - The density of air at 20C and 1.00 atm is 1.205...Ch. 5 - A flask contains 201 mL of argon at 21C and 738...Ch. 5 - Prob. 5.108QPCh. 5 - A balloon containing 5.0 dm3 of gas at 14C and...Ch. 5 - Prob. 5.110QPCh. 5 - A radioactive metal atom decays (goes to another...Ch. 5 - The combustion method used to analyze for carbon...Ch. 5 - Prob. 5.113QPCh. 5 - A hydrocarbon gas has a density of 1.22 g/L at 20C...Ch. 5 - A person exhales about 5.8 102 L of carbon...Ch. 5 - Pyruvic acid, HC3H3O3, is involved in cell...Ch. 5 - Liquid oxygen was first prepared by heating...Ch. 5 - Raoul Pictet, the Swiss physicist who first...Ch. 5 - Prob. 5.119QPCh. 5 - A 21.4-mL volume of hydrochloric acid reacts...Ch. 5 - A 41.41-mL sample of a 0.1250 M acid reacts with...Ch. 5 - A 48.90-mL sample of a 0.2040 M acid reacts with...Ch. 5 - If the rms speed of NH3 molecules is found to be...Ch. 5 - If the rms speed of He atoms in the exosphere...Ch. 5 - Prob. 5.125QPCh. 5 - Prob. 5.126QPCh. 5 - A 1.000-g sample of an unknown gas at 0C gives the...Ch. 5 - Plot the data given in Table 5.3 for oxygen at 0C...Ch. 5 - Carbon monoxide, CO, and oxygen, O2, react...Ch. 5 - Suppose the apparatus shown in the figure...Ch. 5 - Prob. 5.131QPCh. 5 - Prob. 5.132QPCh. 5 - Prob. 5.133QPCh. 5 - Prob. 5.134QPCh. 5 - A 19.9-mL volume of a hydrochloric acid solution...Ch. 5 - The graph here represents the distribution of...Ch. 5 - Prob. 5.137QPCh. 5 - Prob. 5.138QPCh. 5 - Prob. 5.139QPCh. 5 - Sulfur-containing compounds give skunks their...Ch. 5 - Sulfur hexafluoride, SF6, is an extremely dense...Ch. 5 - Prob. 5.142QPCh. 5 - Prob. 5.143QPCh. 5 - Shown below are three containers of an ideal gas...Ch. 5 - A 275-mL sample of CO gas is collected over water...Ch. 5 - Ethanol, the alcohol used in automobile fuels, is...Ch. 5 - Silicon nitride, Si3N4, is a material that is used...Ch. 5 - Prob. 5.148QPCh. 5 - If you have a 150-L cylinder filled with chlorine...Ch. 5 - Prob. 5.150QPCh. 5 - A sample of natural gas is 85.2% methane, CH4, and...Ch. 5 - A sample of a breathing mixture for divers...Ch. 5 - A sample of sodium peroxide, Na2O2, was reacted...Ch. 5 - Prob. 5.154QPCh. 5 - A mixture contained calcium carbonate, CaCO3, and...Ch. 5 - A mixture contained zinc sulfide, ZnS, and lead...Ch. 5 - A mixture of N2 and Ne contains equal moles of...Ch. 5 - A mixture of Ne and Ar gases at 350 K contains...Ch. 5 - An ideal gas with a density of 3.00 g/L has a...Ch. 5 - Prob. 5.160QPCh. 5 - Prob. 5.161QP
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