Concept explainers
(a)
Interpretation:
The determination of the molar mass of a gas at STP if its density is
(a)
Explanation of Solution
The molar mass of a gas at STP can be determined by using the value of its density. The density
The density of the gas is
Substitute the given values in the above expression:
The number of moles of the gas is equal to the ratio of the mass of the gas to the molar mass of that gas.
At STP, the number of moles of a gas is
(b)
Interpretation:
The determination of the molar mass of a gas at STP if its density is
(b)
Explanation of Solution
The density of the gas is
The number of moles of the gas is equal to the ratio of the mass of the gas to the molar mass of that gas.
At STP, the number of moles of the gas is
(c)
Interpretation:
The determination of the molar mass of a gas at STP if its density is
(c)
Explanation of Solution
The density of the gas is
The number of moles of the gas is equal to the ratio of the mass of the gas to the molar mass of that gas.
At STP, the number of moles of the gas is
(d)
Interpretation:
The determination of the molar mass of a gas at STP if its density is
(d)
Explanation of Solution
The density of the gas is
The number of moles of the gas is equal to the ratio of the mass of the gas to the molar mass of that gas.
At STP, the number of moles of the gas is
(e)
Interpretation:
The determination of the molar mass of a gas at STP if its density is
(e)
Explanation of Solution
The density of the gas is
The number of moles of the gas is equal to the ratio of the mass of the gas to the molar mass of that gas.
At STP, the number of moles of the gas is
Want to see more full solutions like this?
Chapter 9 Solutions
ACCESS CODE W/E TEXT CONNECT
- Consider these four gas samples, all at the same temperature. The larger boxes have twice the volume of the smaller boxes. Rank the gas samples with respect to: (a) pressure, (b) density, (c) average kinetic energy, and (d) average molecular speed. (Green spheres are He; violet spheres are Ne.)arrow_forwardAs 1 g of (lie radioactive element radium decays over 1 year. k produces 1.161018 alpha particles (helium nuclei). Each alpha particle becomes an atom of helium gas. What is the pressure ¡n pascal of the helium gas produced if it occupies a volume of 125 mL at a temperature of 25 C?arrow_forward54 One way to generate oxygen is to heat potassium chlorate, KClO3. (The other product is potassium chloride.) If 386 mL of oxygen at 41 C and 97.8 kPa is generated by this reaction, what is the minimum mass of KClO3used?arrow_forward
- 5.18 When helium escapes from a balloon, the balloon’s volume decreases. Based on your intuition about stretching rubber, explain how this observation is consistent with the gas law.arrow_forwardLiquid oxygen was first prepared by heating potassium chlorate, KClO3, in a closed vessel to obtain oxygen at high pressure. The oxygen was cooled until it liquefied. 2KClO3(s)2KCl(s)+3O2(g) If 171 g of potassium chlorate reacts in a 2.70-L vessel, which was initially evacuated, what pressure of oxygen will be attained when the temperature is finally cooled to 25C? Use the preceding chemical equation and ignore the volume of solid product.arrow_forwardEthanol, C2H5OH, is produced industrially from ethylene, C2H4, by the following sequence of reactions: 3C2H4+2H2SO4C2H5HSO4+( C 2 H 5)2SO4C2H5HSO4+( C 2 H 5)2SO4+3H2O3C2H5OH+2H2SO4 What volume of ethylene at STP is required to produce 1.000 metric ton (1000 kg) of ethanol if the overall yield of ethanol is 90.1%?arrow_forward
- Chemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub CoChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningIntroductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
- Introductory Chemistry: An Active Learning Approa...ChemistryISBN:9781305079250Author:Mark S. Cracolice, Ed PetersPublisher:Cengage LearningLiving By Chemistry: First Edition TextbookChemistryISBN:9781559539418Author:Angelica StacyPublisher:MAC HIGHERGeneral Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage Learning