chemistry vocab ch. 10
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Created by:
cneikirk8982 on February 1, 2012
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9 terms
Terms | Definitions |
|---|---|
 mole | the amount of a substance that contains 6.02 X 10 ^23 representattive particles of that substance |
| Avogadro's Number | the number of representative particles contained in one mole of a substance |
| representative particle | the smallest unit into which a substance can be broken down without a change in compostition, usually atoms, moleules or atoms |
| molar mass | a term used to refer to the mass of a mole of any substance |
| Avogadro's Hypothesis | equal volumes of gases at the same temperature and pressure contain equal numbers of particles |
| standard temperature and pressure | the conditions under which the volume of a gas is usually measured |
| molar volume | the volume occupied by 1 mole of a gas at standard temperature and pressure |
| percent composition | the percent by mass of each element in a copund |
| empirical formula | a formula with the lowest whole -number ratio of elements ina compound |
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