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Unformatted text preview: 23 things in a mole The Mole A B C What elements are A, B, and C? Cu , Hg S Cu, Ge e Co, Hg, P Co, G 56% 17% 7% 20% 1. Cu, Hg, S 2. Cu, Ge, Se 3. Co, Hg, P 4. Co, Ge, S Using the Mole y Determine the number of atoms in 2.45 mol of copper. What is the mass of this number of copper atoms? y A pure silver ring contains 2.80 x 10 22 silver atoms. How many moles of silver atoms are there? What is the mass of the ring? Chemical Formulas y Empirical Formula { Simplest formula with the correct relative number of atoms in the molecule y Molecular Formula { Formula with the correct number of atoms in the molecule. A whole number multiple of the empirical formula y Ionic Formula { Empirical formulas for ionic solids Molar Mass y The mass of one mole of a compound y Determine the molar mass of the following molecules and compounds: NaCl, CrSO 4 , C 48 H 28 N 4 O 8...
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 Fall '07
 Bau

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