Mole Conversions

Hyphen notation, & moles Mr. Bartelt’s Chemistry Class Hyphen notation & Nuclear notation Indicate the number of protons, neutrons, and electrons and convert to hyphen notation. 40

1) 20 Ca

3)

12 6

C

2)

127 53

I

36

4) 17 Cl

Indicate the number of protons, neutrons, and electrons and convert to nuclear notation. 5) Carbon-14

6) Uranium-235

7) Uranium-238

8) Xenon-131

Convert from moles to grams (Look up conversion factor on PT) 9) 5.00 moles of carbon 10) 2.50 moles of chlorine 11) 7.50 mole argon Convert from grams to moles (Use same conversion factor from PT but flip it) 12) 40.0 grams of calcium 13) 71.0 grams of chlorine 14) 1.00 kg of sulfur

Convert from moles to # atoms (use Avogadro’s #, 1 mol = 6.022*1023 atoms) 15) 5.00 moles of carbon 16) 2.50 moles of chlorine 17) 7.50 mole argon Convert from # of atoms to moles 18) 6.022*1023 atoms of calcium 19) 1.51*1023 atoms of chlorine 20) 1.20*1025 atoms of sulfur Convert from # of atoms to grams 21) 6.022*1023 hydrogen atoms 22) 1.81*1023 fluorine atoms 23) 8.60*1022 Barium atoms Convert from grams to # of atoms 24) 48.0 grams of carbon 25) 2.00 grams of oxygen 26) 1.00 gram of uranium