Exp2LabRpt- GenChem.pdf - Experiment 2 Identification of a Compound Physical Properties Report Sheet Kendal Miletich Tues 8:30am Name Date Lab

Exp2LabRpt- GenChem.pdf - Experiment 2 Identification of a...

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Unformatted text preview: Experiment 2: Identification of a Compound: Physical Properties Report Sheet Kendal Miletich 9/8/2020 Tues, 8:30am Name____________________________ Date______________ Lab Section_____________ (e.g., Tues, 8am) Parts A1 and A2. Solubility of biphenyl and solid unknown Fill in the appropriate data from your notebook: Compound Biphenyl Solid unknown Water Solubility Hexanes Ethanol Insol Insol sSol Sol sSol sSol Parts B1 and B2. Melting point of biphenyl and solid unknown Observed melting point (ºC) Trial 1 Trial 2 Compound Biphenyl 69.6-71.7 83.2-93.8 Solid Unknown N/A 80.9-82.9 Part C. Density of liquid unknown Student A Mass of micropycnometer (g) Mass of micropycnometer plus liquid (g) Mass of liquid (g) Volume of liquid (mL) (from micropycnometer) Density of liquid (g/mL) Student B 1.498g 2.671g 1.173g 1.504g .7799g/mL .7799g/mL Average density of liquid (g/mL):______________ 23 Parts D1 and D2. Boiling point of methanol and liquid unknown Compound Methanol Liquid Unknown Observed boiling point (ºC) Trial 1 Trial 2 68 58 N/A 58 Part E. Determination of solid and liquid unknowns 1. Solid unknown: 5 Naphthalene Name of solid unknown:__________________ Solid unknown number or letter:___________ 2. Liquid unknown: 9 Acetone Name of liquid unknown:___________________ Liquid unknown number or letter:___________ Postlab question 1. Besides the physical properties used to identify a substance in this experiment, what other physical properties might be used to identify a substance? Other physical properties that could be used to identify a substance in this experiment could also be the color, the smell, the hardness, and the conductivity of the unknown solid/liquid. 24 ...
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