1372 Lec 20SEP2011 - 1 General Chemistry 4th edition, Hill,...

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1 General Chemistry 4 th edition, Hill, Petrucci, McCreary, Perry
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2 General Chemistry 4 th edition, Hill, Petrucci, McCreary, Perry
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3 General Chemistry 4 th edition, Hill, Petrucci, McCreary, Perry
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6 General Chemistry 4 th edition, Hill, Petrucci, McCreary, Perry Molar mass is the mass of one mole of a substance. Molar mass is numerically equal to atomic mass, molecular mass, or formula mass. However … … the units of molar mass are grams (g/mol). Examples: compare molecular mass and formula mass 1 atom Na = 22.99 u 1 mol Na = 22.99 g 1 formula unit KCl = 74.56 u The Mole and Molar Mass 1 mol CO 2 = 44.01 g 1 molecule CO 2 = 44.01 u 1 mol KCl = 74.56 g
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7 General Chemistry 4 th edition, Hill, Petrucci, McCreary, Perry We can use these equalities to construct conversion factors, such as: 1 mol Na ––––––––– 22.99 g Na Conversions involving Mass, Moles,
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This note was uploaded on 12/19/2011 for the course CHEM 1372 taught by Professor Staff during the Spring '08 term at University of Houston.

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1372 Lec 20SEP2011 - 1 General Chemistry 4th edition, Hill,...

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