1. units: grams per mole g/mol or g mol Molar Mass: mass of one mole of particles 6.02 x 10 23 particles 1 mole

2. 12.01g 32.07g 200.59g 55.85g Periodic Table C S Hg Fe

3. 2 (H) + 1 (O) = 2 (1.01) + 1 (16.00) = 18.02 g/mol from the PT

4. 6 (C) + 12 (H) + 6 (O) = 6 (12.01) + 12 (1.01) + 6 (16.00) = 180.18 g/mol

5. 1 (Al) + 3 (O) + 3 (H) = 1 (26.98) + 3 (16.00) + 3 (1.01) = 78.01 g/mol

6. 1. A mole of hydrogen gas, H 2 (g), contains 6.02 x 10 23 ________ of H 2 (g) A.molecules B.atoms C.moles D.grams Quick Quiz!

7. 2. The molar mass of fluorine (F) is _________. A.6.02 x 10 23 mol B.19.00 g C.19.00 g/mol D.6.02 x 10 23 atoms Quick Quiz.

8. 3. Calculate the molar mass of ammonia. A.45.03 g/mol B.17.04 g/mol C.15.01 g/mol D.12.97 g/mol Quick Quiz. NH 3 1 (N) + 3 (H) = 1 (14.01) + 3 (1.01) = 17.04 g/mol

9. 4. Calculate the molar mass of ammonium sulfate. A.118.10 g/mol B.132.17 g/mol C.114.06 g/mol D.228.12 g/mol Quick Quiz. (NH 4 ) 2 SO 4 2 (N) + 8 (H) + 1 (S) + 4 (O) = 2 (14.01) + 8 (1.01) + 1 (32.07) + 4 (16.00) = 132.17 g/mol