Friday, February 17th, 2017.

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Presentation transcript:

Friday, February 17th, 2017

Practice: Identify as ionic (I) or molecular (M) and calculate the molar mass! Sulfur Trioxide Hydrogen Phosphate Carbon Tetrachloride Iron (II) Sulfate Zinc (I) chloride

Practice: Identify as ionic (I) or molecular (M) and calculate the molar mass! Sulfur Trioxide (M) SO3 Hydrogen Phosphate (I) H3PO4 S = 32.065 3H = 3(1.0079) 3(O) = 3(16) P = 32.974 80.065 g/mol 4(O) = 4(16) + = 99.998 g/mol Carbon Tetrachloride (M) CCl4 C = 12.011 + 4(Cl) = 4(35.453) = 153.823 g/mol Iron (II) Sulfate (I) FeSO4 Zinc (I) chloride (I) ZnCl Fe = 55.845 Zn = 65.39 S = 32.065 Cl = 35.453 4(O) = 4(16) = 151.91 g/mol = 100.84 g/mol