Jean-Baptiste-Andrè Dumas designed a simple method in determining the molar mass of an unknown volatile līquid by measuring the mass of known volume as vaporized liquid along with the temperature and pressure. With the use of the Ideal gas equation, the molar mass of the unknown liquid is determined. Are these statements correct? O Only the first stament is correct O Both statements are correct O Only the second stament is correct O Nlether of the statements id correct

Jean-Baptiste-Andrè Dumas designed a simple method in determining the molar mass of an unknown volatile līquid by measuring the mass of known volume as vaporized liquid along with the temperature and pressure. With the use of the Ideal gas equation, the molar mass of the unknown liquid is determined. Are these statements correct? O Only the first stament is correct O Both statements are correct O Only the second stament is correct O Nlether of the statements id correct

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter10: Gases And Their Properties

Section: Chapter Questions

Problem 103IL: Many nitrate salts can be decomposed by heating. For example, blue, anhydrous copper(II) nitrate...

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Many nitrate salts can be decomposed by heating. For example, blue, anhydrous copper(II) nitrate produces the gases nitrogen dioxide and oxygen when heated. In the laboratory, you find that a sample of this salt produced a 0.195-g mixture of gaseous NO2 and O2 with a total pressure of 725 mm Hg at 35 C in a 125-mL flask (and black, solid CuO was left as a residue). What is the average molar mass of the gas mixture? What are the mole fractions of NO2 and O2 in the mixture? What amount of each gas b in the mixture? Do these amounts reflect the relative amounts of NO2 and O2 expected based on the balanced equation? Is it possible that the fact that some NO2 molecules combine to give N2O4 plays a role? Heating copper(II) nitrate produces nitrogen dioxide and oxygen gas and leaves a residue of copper(ll) oxide.