L24 - mole(mol) the amount of a substance that contains the...

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    mole(mol)  -  the amount of a substance that contains the same  number of entities as there are atoms in exactly 12 g of  carbon-12. This amount is  6.022x10 23 .  The number is called Avogadro’s  number and is abbreviated as   N. One mole (1 mol) contains 6.022x10 23  entities (to four  significant figures)
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    1 mole of marbles stacked tightly together would cover the US                                                                             70 miles deep!
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    Water   18.02 g CaCO 3    100.09 g Oxygen    32.00 g Copper  63.55 g One mole of  common  substances.
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    Table 3.1        Summary of Mass Terminology Term Definition Unit Isotopic mass Mass of an isotope of an element amu Atomic mass Molecular  (or formula) mass  (also called  molecular weight) Molar mass ( M ) (also called  atomic weight) (also called  gram-molecular weight) amu amu g/mol Average  of the masses of the naturally  occurring isotopes of an element weighted  according to their abundance Sum of the atomic masses of the atoms (or  ions) in a molecule (or formula unit) Mass of 1 mole of chemical entities (atoms,  ions, molecules, formula units)
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      Information Contained in the Chemical Formula of Glucose  C 6 H 12 O 6  ( M = 180.16 g/mol) Oxygen (O) Mass/mole of  compound 6 atoms 96.00 g Table 3.2 Carbon (C) Hydrogen (H) Atoms/molecule of compound Moles of atoms/ mole of compound Atoms/mole of compound Mass/molecule
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This note was uploaded on 04/20/2008 for the course CHEM 111 taught by Professor Grzegorz during the Spring '08 term at Colorado State.

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L24 - mole(mol) the amount of a substance that contains the...

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