General Chemistry: Principles and Modern Applications (11th Edition)
11th Edition
ISBN: 9780132931281
Author: Ralph H. Petrucci, F. Geoffrey Herring, Jeffry D. Madura, Carey Bissonnette
Publisher: PEARSON
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Textbook Question
Chapter 6, Problem 62E
The chemical composition of air that is exhaled (expired) is different from ordinary air. A typical analysis of expired air at 37 °C and 1.00 atm, expressed as percent by volume, is 74.2% N2.15.2% O2, 3.8% CO2, 5.9% H2O, and 0.9% Ar. The composition of ordinary air is given practice Example 6-12B.
a. What is the ratio of the partial pressure of CO2(g)in expired air to that in ordinary air?
b. Would you expect the density of expired air to greater or less than that of ordinary air at the same temperature and pressure? Explain.
c. Confirm your expectation by calculating the densities of ordinary air and expired air at 37 °C and 1.00 atm.
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Stoichiometry with Partial Pressure
Gas jar
Gas collects
here
Trough of
water
Bee hive
shelf
Reaction
mixture
2 KCIO,
3(s)
+
> 2 KCI
(s),
30
2(g)
A sample of KCIO3 is partially decomposed by heating, producing O2 gas that is collected
safely over water. The volume of total gas collected is 2.50 x 10-4 m³ at 26 °C, giving 101.99
kPa total pressure. How many grams of KCIO3 were decomposed? What atom was
oxidized? What atom was reduced? The pressure of water vapor at 26 °C is 25 torr.
SHOW ALL WORK!
The ideal gas law describes the relationship among
the volume of an ideal gas (V), its pressure (P), its
absolute temperature (T), and number of moles (
n):
PV = nRT
Under standard conditions, the ideal gas law does
a good job of approximating these properties for
any gas. However, the ideal gas law does not
account for all the properties of real gases such as
intermolecular attraction and molecular volume,
which become more pronounced at low
temperatures and high pressures. The van der
Waals equation corrects for these factors with the
constants a and b, which are unique to each
substance:
(P+ ²) (V-nb) = nRT
an²
The gas constant R is equal to 0.08206
L.atm/(K-mol).
Part A
A 3.00-L flask is filled with gaseous ammonia, NH3. The gas pressure measured at 16.0 °C is 2.45 atm . Assuming
ideal gas behavior, how many grams of ammonia are in the flask?
Express your answer to three significant figures and include the appropriate units.
View Available Hint(s)
mass of NH3 =
Submit
▾ Part B
HÅ…
Chapter 6 Solutions
General Chemistry: Principles and Modern Applications (11th Edition)
Ch. 6 - Convert each pressure to an equivalent pressure in...Ch. 6 - Prob. 2ECh. 6 - Calculate the height of a column of liquid benzene...Ch. 6 - Prob. 4ECh. 6 - Prob. 5ECh. 6 - What is the pressure (in mmHg) of the gas...Ch. 6 - At times, a pressure is stated in units of mass...Ch. 6 - Prob. 8ECh. 6 - A sample of O2(g) has a volume of 26.7 L at 762...Ch. 6 - An 886 mL sample of Ne(g) is at 752 mmHg 26 C....
Ch. 6 - Prob. 11ECh. 6 - We want to change the volume of a fixed amount of...Ch. 6 - Prob. 13ECh. 6 - A sample of N2(g) occupies a volume of 42.0 ml...Ch. 6 - Prob. 15ECh. 6 - Prob. 16ECh. 6 - Prob. 17ECh. 6 - Prob. 18ECh. 6 - Prob. 19ECh. 6 - Prob. 20ECh. 6 - Prob. 21ECh. 6 - Prob. 22ECh. 6 - A sample of gas has a volume of 4.25 L at 25.6 C...Ch. 6 - A 10.0 sample of a gas has a volume of 5.25 L at...Ch. 6 - Prob. 25ECh. 6 - Prob. 26ECh. 6 - What is the volume, in liters, occupied by 89.2 g...Ch. 6 - Prob. 28ECh. 6 - Kr(g) in a 18.5 L cylinder exerts a pressure of...Ch. 6 - Prob. 30ECh. 6 - A laboratory high vacuum system is capable of...Ch. 6 - What is the pressure, in pascals, exerted by 1242...Ch. 6 - What is the molar volume of an ideal gas at (a) 25...Ch. 6 - Prob. 34ECh. 6 - A 0.418 g sample of gas has a volume of 115 mL at...Ch. 6 - What is the molar mass of a gas found to have a...Ch. 6 - Whatis the molecular formula of a gaseous fluoride...Ch. 6 - A 2.650 g sample of a gaseous compound occupies...Ch. 6 - A gaseous hydrocarbon webbing 0.231 g occupies a...Ch. 6 - Prob. 40ECh. 6 - Prob. 41ECh. 6 - Monochloroethylene gas is used to make...Ch. 6 - In order for a gas-filled balloon to rise in air,...Ch. 6 - Prob. 44ECh. 6 - The density of phosphorus vapor is 2.64 g/L at 310...Ch. 6 - A particular gaseous hydrocarbon that is 82.7% C...Ch. 6 - Prob. 47ECh. 6 - Prob. 48ECh. 6 - Prob. 49ECh. 6 - Prob. 50ECh. 6 - Prob. 51ECh. 6 - Hydrogen peroxide, H2O2, is used to disinfect...Ch. 6 - Calculate the volume of H2(g), measured at 26 C...Ch. 6 - The Haber process is the principal method for...Ch. 6 - What is the volume. in liters, occupied by a...Ch. 6 - Prob. 56ECh. 6 - A gas cylinder of 53.7 L volume contains N2(g) at...Ch. 6 - Prob. 58ECh. 6 - Which actions you take to establish a pressure of...Ch. 6 - Prob. 60ECh. 6 - Prob. 61ECh. 6 - The chemical composition of air that is exhaled...Ch. 6 - In the drawing below, 1.00 g H2(g) is maintained...Ch. 6 - In the drawing above, 1.00 g H2(g) at 300 K is...Ch. 6 - Prob. 65ECh. 6 - Prob. 66ECh. 6 - A 1.65 g sample of Al reacts with excess HCI, and...Ch. 6 - An 89.3 mL sample of wet O2(g) is collected over...Ch. 6 - A sampleof O2(g) is collected over water at 24 C....Ch. 6 - Prob. 70ECh. 6 - At elevated temperatures, solid sodium chlorate...Ch. 6 - Prob. 72ECh. 6 - CalculateUnta,in meters per second, for CI2(g)...Ch. 6 - Prob. 74ECh. 6 - Prob. 75ECh. 6 - Prob. 76ECh. 6 - Prob. 77ECh. 6 - Determine um, u, and Urmafor a group often...Ch. 6 - Prob. 79ECh. 6 - Prob. 80ECh. 6 - If 0.00484 mol N2O(g) effuses through an orifice...Ch. 6 - Prob. 82ECh. 6 - What are the ratios of rates for the pairs of...Ch. 6 - Prob. 84ECh. 6 - Prob. 85ECh. 6 - The molar mass of radon gas was first estimated by...Ch. 6 - Prob. 87ECh. 6 - Use both the deal gas equation and the van der...Ch. 6 - Prob. 89ECh. 6 - (a) Use the value of the van der Waals constant b...Ch. 6 - Prob. 91IAECh. 6 - Assume the following initial conditions for the...Ch. 6 - Consider the diagram to the right. The "initial"...Ch. 6 - Two evacuated bubs of equal volume are connected...Ch. 6 - Prob. 95IAECh. 6 - A 0.7178 g sample of a hydrocarbon occupies a...Ch. 6 - Prob. 97IAECh. 6 - Ammonium nitrite, NH4NO2,decomposes according to...Ch. 6 - A mature of 100 g H2 and 860 g O2, introduced into...Ch. 6 - Prob. 100IAECh. 6 - What is the partial pressure of CI2(g) , in...Ch. 6 - Prob. 102IAECh. 6 - When working with a mixture of gases, it is...Ch. 6 - Prob. 104IAECh. 6 - Gas cylinder A has e volume of 48.2 L and contains...Ch. 6 - Prob. 106IAECh. 6 - Producer gas is a type of fuel gas made by passing...Ch. 6 - Prob. 108IAECh. 6 - A mixture of H2(g) and O2(g) is prepared by...Ch. 6 - Prob. 110IAECh. 6 - Prob. 111IAECh. 6 - A breathing mixture is prepared which He is...Ch. 6 - Chlorine dioxide,CIO2, is sometimes used as a...Ch. 6 - The amount of ozone, O2,in a mixture of gases can...Ch. 6 - Prob. 115IAECh. 6 - Prob. 116IAECh. 6 - We have noted that atmospheric pressure depends on...Ch. 6 - Consider a sample ofO2(g) at 298 K and 1.0 atm....Ch. 6 - A nitrogen molecule (N2) having the average...Ch. 6 - Prob. 120IAECh. 6 - Prob. 121IAECh. 6 - Prob. 122IAECh. 6 - Prob. 123IAECh. 6 - A 0.156 g sample of magnesium-aluminum alloy...Ch. 6 - Prob. 125FPCh. 6 - Prob. 126FPCh. 6 - Prob. 127FPCh. 6 - Prob. 128FPCh. 6 - Prob. 129FPCh. 6 - Prob. 130SAECh. 6 - Briefly describe each concept or process: (a)...Ch. 6 - Prob. 132SAECh. 6 - Which exerts the greatest pressure. (a) a 75.0 cm...Ch. 6 - Prob. 134SAECh. 6 - Prob. 135SAECh. 6 - A fragile glass vessel will break if the internal...Ch. 6 - Which of the following choices represents the...Ch. 6 - The gas with the greatest density at STP is (a)...Ch. 6 - Precisely 1mol of helium and 1 mol of neon are...Ch. 6 - Prob. 140SAECh. 6 - Prob. 141SAECh. 6 - Prob. 142SAECh. 6 - Prob. 143SAECh. 6 - At 0 C and 0.500 atm, 4.48 L of gaseous NH2(a)...Ch. 6 - To establish a pressure of 2.00 atm in a 2.24 L...Ch. 6 - Carbon monoxide, CO, and hydrogenreact according...Ch. 6 - A mixture of 5.010-5molH2(g) and 5.010-5molSO2(g)...Ch. 6 - Prob. 148SAECh. 6 - Prob. 149SAECh. 6 - Prob. 150SAECh. 6 - A gaseous hydrocarbon that is 82.7% C and 17.3% H...Ch. 6 - Draw a box to represent a sample of air containing...Ch. 6 - Prob. 153SAE
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Solutions: Crash Course Chemistry #27; Author: Crash Course;https://www.youtube.com/watch?v=9h2f1Bjr0p4;License: Standard YouTube License, CC-BY