The label has come off a cylinder of gas in your laboratory. You know only that one species of gas is contained in the cylinder, but you do not know whether it is hydrogen, oxygen, or nitrogen To find out you evacuate a 5-liter flask seal it and weigh it then let gas from the

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
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Ideal Gases
The label has come off a cylinder of gas in your laboratory. You know only that one species of
gas is contained in the cylinder, but you do not know whether it is hydrogen, oxygen, or
nitrogen. To find out, you evacuate a 5-liter flask, seal it and weigh it, then let gas from the
cylinder flow into it until the gauge pressure is 1.00 atm. The flask is reweighed, and the mass of
the added gas is found to be 13.0 g. Room temperature is 27°C, and barometric pressure is 1.00
atm. What is the gas? Justify your response.
Transcribed Image Text:The label has come off a cylinder of gas in your laboratory. You know only that one species of gas is contained in the cylinder, but you do not know whether it is hydrogen, oxygen, or nitrogen. To find out, you evacuate a 5-liter flask, seal it and weigh it, then let gas from the cylinder flow into it until the gauge pressure is 1.00 atm. The flask is reweighed, and the mass of the added gas is found to be 13.0 g. Room temperature is 27°C, and barometric pressure is 1.00 atm. What is the gas? Justify your response.
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