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83.73g - 83.32g = 0.41g

83.73g - 83.32g = 0.41g. 83.82g - 83.39g = 0.43g. 1 L. 267 mL. x. =. 0.267 L. 1000 mL. 99.0 + 273 = 372.0 K. 99.0 + 273 = 372.0 K. 773.5mm Hg. x. 101.3 kPa. =. 103.1 kPa. 760 mm Hg. 812.0mm Hg. x. 101.3 kPa. =. 108.2 kPa. 760 mm Hg. 1 L. 267 mL. x. =. 0.267 L. 1000 mL.

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83.73g - 83.32g = 0.41g

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  1. 83.73g - 83.32g = 0.41g 83.82g - 83.39g = 0.43g 1 L 267 mL x = 0.267 L 1000 mL 99.0 + 273 = 372.0 K 99.0 + 273 = 372.0 K 773.5mm Hg x 101.3 kPa = 103.1 kPa 760 mm Hg 812.0mm Hg x 101.3 kPa = 108.2 kPa 760 mm Hg

  2. 1 L 267 mL x = 0.267 L 1000 mL 99.0 + 273 = 372.0 K 99.0 + 273 = 372.0 K 773.5mm Hg x 101.3 kPa = 103.1 kPa 760 mm Hg 812.0mm Hg x 101.3 kPa = 108.2 kPa 760 mm Hg PV = nRT PV RT (103.1)(0.267) (8.31 x 372.0) n = = = 0.00890 moles (108.2)(0.267) (8.31 x 372.0) n = = 0.00935 moles

  3. 83.73g - 83.32g = 0.41g 83.82g - 83.39g = 0.43g grams mole Molar mass = 1 L 267 mL x = 0.267 L 1000 mL 99.0 + 273 = 372.0 K 0.41 g 0.00890 moles = 46.1 g/mol 99.0 + 273 = 372.0 K 0.43 g 0.00935 moles 773.5mm Hg x 101.3 kPa = 46.0 g/mol = 103.1 kPa 760 mm Hg 812.0mm Hg x 101.3 kPa = 108.2 kPa 760 mm Hg PV RT (103.1)(0.267) (8.31 x 372.0) n = = = 0.00890 moles (108.2)(0.267) (8.31 x 372.0) n = PV = nRT = 0.00935 moles

  4. H H O-H H H O-H H H H H C C C grams mole 0.41 g 0.00890 moles Molar mass = = 46.1 g/mol 0.43 g 0.00935 moles = 46.0 g/mol (46.1 + 46.0)/2 = 46.05 g/mol C = 12.01 Ethanol H = 1.01 O = 16.00 16 1.01 1.01 1.01 12.01 12.01 12.01 1.01 1.01 1.01 1.01 16 1.01 1.01 1.01 methanol ethanol =32.05 g/mol = 46.08 g/mol Which one has a molar mass of 46 g/mol?

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