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Unformatted text preview: Click to edit Master subtitle style CHEM 230 F09 Lecture 3 Chapter 4: Gases 14.1-14.8 Session Info: 230 Topics Pressure Measurement Units Gas Laws Relationships between pressure, volume, moles, and temperature Ideal Gas Law Calculations including density and molar mass Solvings stochiometric problems Involving gas volumes Standard Temperature and Pressure Pressure Units 1 Pa = 1 kg m-1 s-2 1 bar = 105 Pa 1 atm = 760 mm Hg* 1 atm = 1.013 x105 Pa 1 atm = 14.7 lb in-2 (psi) *mm Hg is pressure exerted by a column of mercury at 15oC in a standard gravitational field vacuum 760 mm Hg Concept Question Relative pressure: Manometer On which side of the manometer (with the red liquid) is the pressure higher? A Left B Right Timmit Radon Systems http://www.timmitradon.com/feb338.jpg (accessed July 2009) Radon Colorless, odorless gas that is radioactive and is the leading cause of lung cancer in non-smokers. Scientists are more certain about radon risks than from most other cancer- causing substances. Concentration limit 4 pCi/L http://www.radon.ie/radoninireland.htmlhttp://www....
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This note was uploaded on 03/29/2010 for the course CHEMISTRY 230 taught by Professor Gottfried during the Fall '10 term at University of Michigan.

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F09_230_L03_pre[1] - Click to edit Master subtitle style...

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