The purpose of this experiment was to observe the purity of a compound by testing its melting or boiling point. When a chemical is at a melting point, the vapor pressure of its solid phase is equal to that of the liquid phase. Impurities like H20 will lower the melting point of a compound. Reagents Tested: Cinnamic Acid Urea Pentane Analysis: Boiling Point of Pentane Pentane boils at about a third of the temperature of boiling water (see Table A […]
The purpose of this experiment was to separate two liquids using Simple and Fractional Distillations. Distillation separates the components of a liquid mixture by their differences in volatility: the component with the higher vapor pressure (lower boiling point) evaporates more readily, so the vapor, and the distillate condensed from it, is enriched in that component. Those volatility differences arise from differences in the chemicals’ intermolecular forces. Reagents in the Experiment: Cyclohexane Toluene […]
