Mole Calculations Part Three. Calculate the number of O atoms in 250. g of CO 2. O C O Note, there are 2 O's for each CO 2 molecule = 6.84 x10 24 atoms.

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Presentation transcript:

Mole Calculations Part Three

Calculate the number of O atoms in 250. g of CO 2. O C O Note, there are 2 O's for each CO 2 molecule = 6.84 x10 24 atoms O 1 molec CO 2 x 2 atoms O 1 mole x 6.02 x molec 44.0 g x 1 mole250. g CO 2

Calculate the mass of CuSO 4. 6H 2 O that contains 6.93 x atoms of O.

O O S 2-- OO O O O O O o Cu 2+ There are 10 O atoms in one formula unit Octahedron

Calculate the mass of CuSO 4. 6H 2 O that contains 6.93 x atoms of O. = 3.08 x 10 3 g 1 mole x g 6.02 x FU x 1 mole 10 atoms O x 1 FU 6.93 x atoms O

Calculate the mass of P 2 Cl 5 that contains 2.6 x atoms of Cl. = 2.1 x10 4 g 1 mole x g 6.02 x molec x 1 mole 5 atoms Cl x 1 molecs2.6 x atoms Cl

Calculate the atoms of Cl in 25.0 g of P 2 Cl 5. = 3.14 x at Cl 1 molec x 5 atoms Cl 1 mole x 6.02 x molec g x 1 mole25.0 g P 2 Cl 5