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Chapter 7 Vocabulary
Vacabulary words for chapter 7 chemistry
11
Chemistry
11th Grade
02/13/2012

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Term
mole (mol)
Definition
the ammount of a substance that contains 6.02*10>23
Term
Avogrado's number
Definition
the number of representative particles can be broken down without a change in composition
Term
representative particle
Definition
the smallest unit onto which a substance can be broken down without a change in composition
Term
gram atomic mass (gam)
Definition
the mass, in grams, of one mole of attoms in a monatomic element
Term
gram molecular mass (gmm)
Definition
the mass, in grams, of one mole of a molecular substance
Term
gram formula mass (gfm)
Definition
the mass of one mole of an ionic compound
Term
molar mass
Definition
a general expression used to refer to the mass of a mole of any substance unless a more specific term is needed to avoid confusion
Term
standard temperature and pressure (STP)
Definition
the conditions under which the volume of a gas is usually measured
Term
molar volume
Definition
the volume of a substance that contains 6.02*10>23 representative particles of that substance
Term
percent composition
Definition
the percent by mass of each element in a compound
Term
empirical formula
Definition
a formula with the lowest whole number ratio of elements in a compound
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