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# Ch9 notes - CHAPTER 9 GASES THEIR PROPERTIES AND BEHAVIOR...

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94 CHAPTER 9 GASES: THEIR PROPERTIES AND BEHAVIOR Chapter Learning Goals A. Condition of Gases: Gas Laws 1. Explain how the height of a liquid in a barometer depends on the density of the liquid. 2. Interconvert units of pressure. 3. Know how to determine the pressure of a gas, using a manometer. 4. Use the ideal gas law to calculate pressure, volume, moles of gas, or temperature, given the other three variables. 5. Use the ideal gas law to calculate final pressure, volume, moles of gas, or temperature from initial pressure, volume, moles of gas, and temperature. 6. Perform stoichiometric calculations relating the mass of a reactant to the mass, moles, and volume or pressure of a gaseous product. 7. Use the ideal gas law to calculate the molar mass of a gas. 8. Use the ideal gas law to calculate the density of a gas. 9. Use Dalton's law to calculate the partial pressure of a gas in a mixture. B. Behavior of Gases: Kinetic–Molecular Theory 1. Use the Kinetic–Molecular Theory of gases to explain each of the gas laws. 2. Use Graham's law to calculate the relative rates of effusion of two different gases. 3. State the conditions under which a gas is expected to behave ideally or nonideally. Chapter in Brief This chapter looks at the behavior of gases and how that behavior can be explained. You will begin with a general description of gases and how pressures are measured. You then will learn how the behavior of gases can be defined by the four variables: pressure, temperature, volume, and the number of moles; and also how these variables are related through the gas laws and the ideal gas law. You will learn how to apply the ideal gas law to stoichiometric calculations and calculations involving the density and molar mass of a gas. You will also learn how the ideal gas law can be used to describe the behavior of a mixture of gases. Once you are able to describe the behavior of gases through the use of the gas laws, you will be introduced to the Kinetic–Molecular Theory, which explains the reason for that behavior. You will also be introduced to the concepts of effusion and diffusion and the difference between ideal and real gases. Finally, you will take a brief look at some of the chemistry of the atmosphere.

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95 LECTURE OUTLINE Gases and Gas Pressure A. Gases — constituent atoms or molecules have little attraction for one another. 1. Free to move about in available volume.
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Ch9 notes - CHAPTER 9 GASES THEIR PROPERTIES AND BEHAVIOR...

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