2_Gas_Laws_2

2_Gas_Laws_2 - The Gas Laws: Chapter 1 CHEM 300 Fall 2011...

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Fall 2011 The Gas Laws: Chapter 1 CHEM 300
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Dalton’s law • The total pressure of a gas mixture is equal to the sum of the partial pressure of each gas p T = p 1 + p 2 + p 3 + … p n p T = p i i
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Mole fractions What is the mole fraction of A and B in each figure? The mole fraction of a gas is the ratio of the number of moles of one gas to the total number of moles of all the gases present 12 squares per line, 48 total
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Dalton’s law (40m dive; 5 atm) – Both the total pressure and the partial pressure of each gas as inhaled increases as a diver goes deeper AIR Nitrogen 79 %, 21% Oxygen at 1 atm x N2 =0.79, x O2 =0.21) – Increased partial pressure of oxygen can lead to oxygen poisoning ( p O2 must be < 1.6 atm ) while increased nitrogen partial pressure can lead to nitrogen narcosis. – If nothing is done, what will the partial pressure of oxygen and nitrogen be at 40 m? – What is a solution to this problem?
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This note was uploaded on 11/28/2011 for the course CHEM 300 taught by Professor N.gerber during the Fall '11 term at S.F. State.

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2_Gas_Laws_2 - The Gas Laws: Chapter 1 CHEM 300 Fall 2011...

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