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Chemistry: Mole Problems #2

Conversion Factors:
 
1 mole = gram formula mass
   *Use a periodic table to look up masses

1 mole = 6.02 x 1023 atoms, molecules, or formula units

Question Group #1
Directions and/or Common Information: Convert and show all work.


1.77 x 1028 atoms Cu = ___ mole Cu = ___ grams Cu
1. 





44.0 g Ca = ___ mole Ca = ___ atoms Ca
2. 





0.775 mole K = ___ atoms K = ___ g K
3. 





1.99 x 1025 molecules of H2O = ___ moles H2O
4. 





0.667 moles Li = ___ g Li
5. 





5.88 moles Na = ___ atoms Na
6. 





15.0 x 1023 atoms Zn = ___ g Zn
7. 





878 g O = ___ atoms O
8. 





125 g Cr = ___ atoms Cr
9. 





4.75 x 106 atoms Al = ___ g Al
10. 








E Saylor

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