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Worksheet from Chm108 Introduction to General, Organic, and Biochemistry course by Dr. Jim Zoval at Saddleback College.
Typology: Exercises
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For the following compounds, write the chemical formula and determine the molar mass. Write the units! water carbon dioxide sodium chloride calcium hydroxide potassium permanganate (KMnO 4 ) sodium carbonate barium nitrate hydrogen monochloride sulfuric acid (H 2 SO 4 ) acetic acid (C 2 H 4 O 2 ) SEE NEXT PAGE FOR KEY
Water (H 2 O) Element Number MM H 2 1.0 1 g/mole O 1 16.00 g/mole Total MM = 18.0 2 g/mole carbon dioxide, CO 2 Element Number MM O 2 16.0 0 g/mole C 1 12.01 g/mole Total MM = 44.01 g/mole sodium chloride, NaCl Element Number MM Cl 1 35.45 g/mole Na 1 22.99 g/mole Total MM = 58.44 g/mole calcium hydroxide, Ca(OH) 2 Element Number MM H 2 1.01 g/mole O 2 16.00 g/mole Ca 1 40.08 g/mole Total MM = 74.10 g/mole potassium permanganate (KMnO 4 ) Element Number MM O 4 16.00 g/mole Mn 1 54.94 g/mole K 1 39.10 g/mole Total MM = 158.04 g/mole sodium carbonate, Na 2 CO 3 Element Number MM O 3 16.00 g/mole Na 2 22.99 g/mole C 1 12.01 g/mole Total MW = 105.99 g/mole barium nitrate, Ba(NO 3 ) 2 Element Number MM O 6 16.00 g/mole Ba 1 137.3 3 g/mole N 2 14.01 g/mole Total MM = 261.35 g/mole hydrogen monochloride, HCl Element Number MM Cl 1 35.45 g/mole H 1 1.0 1 g/mole Total MM = 36.4 6 g/mole sulfuric acid (H 2 SO 4 ) Element Number MM S 1 32.07 g/mole H 2 1.0 1 g/mole O 4 16.00 g/mole Total MM = 98.09 g/mole acetic acid (C 2 H 4 O 2 ) Element Number MM H 4 1.0 1 g/mole O 2 16.00 g/mole C 2 12.01 g/mole Total MM = 60.0 6 g/mole
