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
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 6, Problem 103IAE
When working with a mixture of gases, it is sometimes convenient to use an apparent molar mass (a weighted-average molar mess). Thinkterms of replacing the mixture with a hypothetical single gas. What is the apparent molar mass of air, given that air is 78.08% N2, 20.95%O2, 0.93% Ar, and 0.036% CO2, by volume?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
5. An experiment is performed to measure the mass percent of CaCO3(s) in eggshells. Five different
samples of CaCO3(s) of known mass react with an excess of 2.0M HCl(aq) in identical sealed, rigid reaction
vessels. The pressure of the gas produced is measured with a pressure gauge attached to the reaction
vessel. Since the reaction is exothermic, the reaction system is cooled to its original temperature before
Cooling the HCl(aq) to a lower temperature than it was in the original experiment
the pressure is recorded. The experimental data are used to create the calibration line below.
Using eggshells that are more finely powdered than those used in the original
experiment
0.10-
0.09
0.08-
Using 2.0M CH3COOH(aq) instead of 2.0M HCl(aq)
0.07
* 0.06-
Reducing the volume of the reaction vessel
0.05
0.04
CLEAR ALL
0.03-
0.02-
0.05
0.10
0.15
0.20
Mass of CaCO3(s) (grams)
The experiment is repeated with an eggshell sample, and the experimental data are recorded in the table
below.
Mass of…
The reaction between SO3 (g) and CO2 (g) is based on the chemical equation below.
2 SO3 (g) + CO2 (g) = CS2 (g) + 4 O2 (g)
At 500 oC, we mix 0.20 mol SO3 (g) 0.25 mol CO2 (g) and 1.20 mol O2 (g) (without CS2 (g)) initially in a 1-L bottle. After the reaction reaches equilibrium, the amount of SO3 (g) becomes 0.12 mol. Determine the value of the equilibrium constant of the above reaction (with 2 significant figures).
[References]
A steel cylinder contains 5.00 moles graphite (pure carbon) and 5.00 moles O2. The mixture is ignited and all the graphite reacts. Combustion
produces a mixture of CO gas and CO2 gas. After the cylinder has cooled to its original temperature, it is found that the pressure of the
cylinder has increased by 40.0%. Calculate the mole fractions of CO, CO2, and O2 in the final gaseous mixture.
Mole fraction of CO =
Mole fraction of CO2
Mole fraction of O2 =
Submit Answer
Try Another Version
3 item attempts remaining
Visited
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
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- When calcium carbonate is heated strongly, it evolves carbon dioxide gas. CaCO3(s)CaO(s)+CO2(g) 25 g of CaCO3 is heated, what mass of CO2would be produced? What volume would this quantity of CO2 (CU at STP?arrow_forward62 Ammonium dinitramide (ADN), NH4N(NO2)2, was considered as a possible replacement for aluminium chloride as the oxidizer in the solid fuel booster rockets used to launch the space shuttle. When detonated by a spark, AND rapidly decomposes to produce a gaseous mixture of N2,O2, and H2O. (This is not a combustion reaction. The ADN is the only reactant.) The reaction releases a lot of heat, so the gases are initially formed at high temperature and pressure. The thrust of the rocket results mainly from the expansion of this gas mixture. Suppose a 2.3-kg sample of ADN is denoted and decomposes completely to give N2,O2, and H2O. If the resulting gas mixture expands until it reaches a temperature of 100°C and a pressure of 1.00 atm, what volume will it occupy? Is your answer consistent with the proposed use of ADN as a rocket fuel?arrow_forwardA power plant is driven by the combustion of a complex fossil fuel having the formula C11H7S. Assume the air supply is composed of only N2 and O2 with a molar ratio of 3.76:1.00, and the N2 remains unreacted. In addition to the water produced, the fuels C is completely combusted to CO2 and its sulfur content is converted to SO2. In order to evaluate gases emitted at the exhaust stacks for environmental regulation purposes, the nitrogen supplied with the air must also be included in the balanced reactions. a Including the N2 supplied m the air, write a balanced combustion equation for the complex fuel assuming 100% stoichiometric combustion (i.e., when there is no excess oxygen in the products and the only C-containing product is CO2). Except in the case of N2, use only integer coefficients. b Including N2 supplied in the air, write a balanced combustion equation for the complex fuel assuming 120% stoichiometric combustion (i.e., when excess oxygen is present in the products and the only C-containing product is CO2). Except in the case of use only integer coefficients c Calculate the minimum mass (in kg) of air required to completely combust 1700 kg of C11H7S. d Calculate the air/fuel mass ratio, assuming 100% stoichiometric combustion. e Calculate the air/fuel mass ratio, assuming 120% stoichiometric combustion.arrow_forward
- How does hydraulic fracturing differ from previously used techniques for the recovery of natural gas from the earth?arrow_forwardPyruvic acid, HC3H3O3, is involved in cell metabolism. It can be assayed for (that is, the amount of it determined) by using a yeast enzyme. The enzyme makes the following reaction go to completion: HC3H3O3(aq)C2H4O(aq)+CO2(g) If a sample containing pyruvic acid gives 21.2 mL of carbon dioxide gas, CO2, at 349 mmHg and 30C, how many grams of pyruvic acid are there in the sample?arrow_forwardA student prepares phosphorous acid, H3PO3, by reacting solid phosphorus triiodide with water. PI3(s)+3H2O(l)H3PO3(s)+3HI(g) The student needs to obtain 0.250 L of H3PO3(d=1.651g/cm3). The procedure calls for a 45.0% excess of water and a yield of 75.0%. How much phosphorus triiodide should be weighed out? What volume of water (d=1.651g/cm3) should be used?arrow_forward
- Zn reacts with hydrochloric acid to give zinc chloride and hydrogen gas. A sample of 5 g of a Zn mineral requires 10 mL of commercial HCl of 37% purity, by weight and density 1.19 g/mL, to react completely. Find: a) The mass of zinc contained in the sample. b) The purity of the zinc mineral. c) The pressure exerted by the hydrogen gas collected in a 2 L container and at a temperature of 20ºC.please use conversion factors and mark the solutionsThe solutions should be : 3,92 g; 78,4%; 0,72 atm.I just dont know how to do itarrow_forwardZn reacts with hydrochloric acid to give zinc chloride and hydrogen gas. A sample of 5 g of a Zn mineral requires 10 mL of commercial HCl of 37% purity, by weight and density 1.19 g/mL, to react completely. Find: a) The mass of zinc contained in the sample. b) The purity of the zinc mineral. c) The pressure exerted by the hydrogen gas collected in a 2 L container and at a temperature of 20ºC.please use conversion factors and mark the solutionsarrow_forwardThis is my second time asking this question, the first one came out as incorrect for both answers (I attached pictures of answers). I'm not sure what is done incorrectly. Phosphorus pentachloride decomposes according to the chemical equation PCl5(g)↽−−⇀PCl3(g)+Cl2(g) ?c=1.80 at 250 A 0.2738 mol sample of PCl5(g) is injected into an empty 3.90 L reaction vessel held at 250 ∘C. Calculate the concentrations of PCl5(g) and PCl3(g) at equilibrium.arrow_forward
- Consider the following reaction: 2 NH3 (g) + 3 Cl2 (g) → N2 (g) + 6 HCl (g) A mixture is prepared from 15.0 mol of ammonia and 15.0 mol of chlorine gas. Determine the total moles of gas in the container after the reaction has gone to completion.arrow_forwardWhat volume of ammonia (NH)3 is formed if 8.84 x 10^21 molecules of carbon dioxide are also produced ?arrow_forwardIn a mixture of three gases (A, B, and C), the number of moles of each gas is known (nA, nB, and nC). How would the mole fraction of gas A (χA) be calculated using the values nA, nB, and nC?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
Chemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage Learning
Introductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
World of Chemistry, 3rd editionChemistryISBN:9781133109655Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCostePublisher:Brooks / Cole / Cengage Learning
Chemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning
Chemistry
Chemistry
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning
Chemistry: An Atoms First Approach
Chemistry
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Cengage Learning
Introductory Chemistry: A Foundation
Chemistry
ISBN:9781337399425
Author:Steven S. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning
World of Chemistry, 3rd edition
Chemistry
ISBN:9781133109655
Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Publisher:Brooks / Cole / Cengage Learning
Chemistry & Chemical Reactivity
Chemistry
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:Cengage Learning
Step by Step Stoichiometry Practice Problems | How to Pass ChemistryMole Conversions Made Easy: How to Convert Between Grams and Moles; Author: Ketzbook;https://www.youtube.com/watch?v=b2raanVWU6c;License: Standard YouTube License, CC-BY