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| Gay Lussacs law of Combining volumes of gases |
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| states that at a constant temperature and rpessure, the volumes of gaseous reactants and products can be expressed as ratios of small whole numbers |
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| states that equal volumes of gases at the same temperature and pressure contain equal number of molecules |
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| all elecments that are gases near room temperature, except the noble gases, normally exist as ______________ |
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| moles of gas/ amount of gas |
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| gas volume is directly proportional to the ________________ or ________________ at a given temperature and pressure |
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| avagadro's constant (6.022 x 10^23) |
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| one mole of a molecular substance contains a number of molecules equal to |
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| one mole of a substance will have a different ___________ than one mole of another substance |
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| one mole of any gas will occupy the same colume as one mole of any other gas that the same _________ & __________ despite mass differences |
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| the volume occupied by one mole of a gas at STP is known as the standard molar volume of a gas. It's value is _________ |
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| is the mathematical relationship among pressure, volume, temperature, and the number of moles of a gas |
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| the Ideal Gas Law Formula |
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| formula for ____________ is V = PV = nRT |
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| ideal gas constant (.0821) |
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| R = _______________ value = __________ |
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| Avagadro's Law, Boyles Law, Charles Law |
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| The ideal gas law reduces to ______________, _______, or _____________ when the appropriate variables are held constant |
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| says that at constant temperature the volume of a given mass of gas is inversely proportional to the pressure |
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| says that at constant pressure the volume of a given mass of gas is directly proportions to the Kelvin temperature |
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| says that at constant pressure and temperature, the volume of a given mass of a gas is directly proportional to the number of moles |
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| in chemical equations, indicate molar amount, mole ratios, and volume ratios. |
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| volumes can be compared in this way only if all are measured at the same _______ & ________ |
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| gas volume A --> moles A --> moles B--> mass B |
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| mass A --> moles A --> moles B --> gas volume B |
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| is the gradual mixing of two gases due to their spontaneous, random motion |
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| is the process whereby the molecules of a gas in a container randomly pass through a tiny opening in the container |
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| states that the rates of effusion of gases at the same temperature and pressure are inversely proportional to teh square roots of their molar masses |
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| rate of effusion A/ rate of effusion B |
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| the formula for Grahams law of Effusion |
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| lighter molecules diffuse _______ than heavier molecules |
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