Chem_2_2008_Summer_3

# 12 the particles of an ideal gas are assumed to be

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12. The particles of an ideal gas are assumed to be _________________________ , that is, particles that have a mass but occupy no volume. 13. Although gas temperatures are often measured with thermometers that report temperatures in _________________________ scientists generally use _________________________ temperatures for calculations.

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3 14. The observation that the pressure of an ideal gas is inversely proportional to the volume it occupies if the _________________________ and the temperature are constant is a statement of Boyle’s Law. 15. For an ideal gas, volume and temperature described in kelvins are _________________________ proportional if the number of gas particles and pressure are constant. This is a statement of Charles’ Law. 16. It is always a good idea to include the units in a solved equation as well as the numbers. If the units cancel to yield a reasonable unit for the unknown property, you can feel confident that you picked the _________________________ , that you did the _________________________ correctly to solve for your unknown, and that you have made the _________________________ . 17. There are three different ways to convert between a measurable property and moles in equation stoichiometry problems. For pure liquids and solids, we can convert between mass and moles, using the _________________________ as a conversion factor. For solutions, _________________________ provides a conversion factor that enables us to convert between moles of solute and volume of solution. 18. Particles of matter tend to become more _________________________ (spread out). 19. Because there are more possible arrangements for gas particles when they are dispersed throughout a container than when they are concentrated in one corner of it, _________________________ suggests that they will spread out to fill the total volume available to them. 20. If less than 1 gram of the substance will dissolve in 100 milliliters (or 100 g) of solvent, the substance is considered _________________________ . 21. Nonpolar substances are _________________________ likely to dissolve to a significant degree in polar solvents. 22. If we need to predict the relative water solubility of two similar molecules, we can expect the one with the proportionally _________________________ polar portion to have higher water solubility.
4 23. Soap can be made from animal _________________________ and vegetable _________________________ , which in turn are composed of triglycerides.

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• Fall '06
• Mark
• Chemistry, Amine, Carboxylic acid, gas particles, condensed chemical formula

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