Moles - Moles 14:46 The law of definite proportions states...

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Moles 14:46 The  law of definite proportions  states that a  specific chemical compound  obtained  from any  source  always contains the same proportion by mass of its elements. H +  + OH -   H 2 O (2:16) 2 H 2  + O 2   2 H 2 O (2:16) This means that compounds are not simple mixtures     o Isotopes can vary this somewhat o Doesn’t apply to many polymers Chemical Equations Transformation of a set of substances to another set. o Recipe for change  o Reactants  Products Chemical reactions rearrange atoms
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14:46 Dimensional Analysis  – Unit conversion Most numbers have associated units Moles Atoms are small and plentiful Inconvenient to measure each item in a large sample Avogadro’s number o 1 mole of a substance contains 6.022 x 10
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This note was uploaded on 03/12/2012 for the course CHEMISTRY 131 taught by Professor Lacey during the Fall '11 term at SUNY Stony Brook.

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Moles - Moles 14:46 The law of definite proportions states...

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