data_and_calc._for_unknownslaura

data_and_calc._for_unknownslaura - (7.894 g 7.030 g)= 0.864...

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Laura Jordan Identification of Unknowns Data and Calculations Unknown #14 A. Solubility: Water: The unknown solid didn’t dissolve at all, some sank to the bottom and some floated but the crystals didn’t dissolve Ethanol: It sank to the bottom, but didn’t visibly dissolve. Hexane: It completely dissolved. B. Density: Weight of flask : 6.926 g Weight of flask + solid : 7.030 g Weight of flask + solid + water (solvent ): 7.894 g Volume total : 1 mL Density of Water : 1.000 g/mL Mass solvent : (Weight of flask +solid + solvent)-(weight of flask +solid) =
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Unformatted text preview: (7.894 g 7.030 g)= 0.864 g Volume solvent : (V=m/D)=(0.864/1.000)=0.864 mL Volume sample : (Volume total Volume solvent) = (1.000 mL 0.864 mL)=0.136 mL Mass sample : (weight flask + solid) (weight flask)= 7.030 g 6.926 g= 0.104 g Density : (Mass/Volume)= (0.104 g/0.136 mL)=0.765 g/mL C. Melting point: Rough melting point range: 38 - 53 Exact melting point range: 39.8 - 52.5...
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This note was uploaded on 04/18/2008 for the course CHEM 102 taught by Professor Haworth during the Spring '08 term at Marquette.

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data_and_calc._for_unknownslaura - (7.894 g 7.030 g)= 0.864...

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