Mona Vaidya 02/04/2014 CHE 317 Laboratory Experiment #1: Simple Distillation of Two Volatile Liquids Containing Non-Volatile Impurities Introduction: Simple distillation is a commonly used method to separate and purify the mixtures of organic liquids into their original components. Mixtures of two miscible liquids with two different boiling points were separated. Therefore‚ it can be said that the two organic compounds are separated by exploiting the different boiling temperatures of the liquids
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Distillation Purpose: To conduct the distillation process‚ simple or fractional. Procedure: 1. Add 5ml of 20% ethanol: water mix to the distillation flask. 2. Add 23 stir bar 3. Make sure that the thermometer bulb is just below the Claisen Head‚ carefully. Be very gentle with the thermometers and take care not to break them. 4. Label 3 vials‚ 1‚2‚ and 3. 5. Place receiving vial 1 on ice to collect the distillate 6. Start the distillation by piling up hot sand around the distillation flask with
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Comparing between the simple and fractional distillation‚ the fractional distillations for both n-propanol and acetone provided a better distillation. The data and graphs support the statement since the fractional graphs provided a steeper slope than the simple distillation. The steeper slope represent how fast the mixture are separated throughout the distillations. For example‚ the simple distillation for acetone the slope initially started at about 20 mL at about 65.5℃ and ended at about 30 mL
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Identity as “neutral spirits so distilled‚ or so treated after distillation with charcoal or other materials‚ as to be without distinctive character‚ aroma‚ taste‚ or color.” As Vodka is a neutral spirit‚ it means that it can be obtained by the distillation of any product with fermentable carbohydrates on it‚ like grains (rye‚ corn or wheat) or products like potatoes‚ beets or sugar beets; even grapes. Nowadays‚ most Vodka is obtained from grain. To get Vodka‚ a neutral spirit‚ (without the character
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Determination of absorption maximum 1. Distilled water was used as blank for determination of absorption maximum. 2. The blank solution was put at the end of the tips contain quartz to calculate the absorption maximum. 3. The result of absorption maximum from the graph was printed. 4. Absorption maximum will be used to determine the unknown concentration. D. Operation of the UV-VIS spectrophotometer 1. Cary win UV was selected and
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common atomic structures of chemicals excites the electrons and makes them go crazy. This ends up in the emission of visible light and forms into multiple colors. What is spectroscopy and how is it used by physicists and chemists? Spectroscopy is an important tool used in astronomy. It is detailed study of light that comes from an object. Light is energy that moves through space. It can be thought of either waves or particles. The distance between the high points‚ or peaks‚ are called the light’s
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Running Head:ISOLATION 1 ISOLATION A LONELY ROAD Elizabeth Arguelles Keiser University ISOLATION 2 ISOLATION A LONELY ROAD There is a difference between the unhealthful experiences of isolation from the healthful and necessary experience of occasional solitude. Having time alone is an important part of emotional maturity. Sometimes we need alone time to sort through are thoughts‚ distress from a busy day. In a demanding world of seven billion people‚ restore a connection with
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Micro-Raman Spectroscopy Raman spectroscopy is a micro-analytical method that showed many advantages in analysis of cultural heritage materials. It is a form of vibrational spectroscopy that allows the identification of particles in homogeneous materials in the micron order. The identification is employed on the basis of the molecular vibrational spectra of samples‚ obtained by excitation with visible laser light. In micro-Raman spectroscopy‚ the laser beam is focused by means of a microscope
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Experiment 11b: Isolation of Caffeine from a Tea Bag October 12‚2012 Purpose: The objective of this experiment is to extract caffeine from tea bags using the method of extraction. After the caffeine is extracted it is then compared to the nutritional facts amount per serving on the tea bags box. Supplies: Glassware: 1. 50.0 m L graduated cylinder 2. 150.0 mL beaker 3. 2-glass stirring rod 4. 6-test tubes 5. 2-glass pipettes 6. 2-50.0 mL Erlenmeyer flasks 7. glass funnel Hardware:
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CHM-201 General Chemistry and Laboratory I Laboratory 8. Spectroscopy Purpose: Spectroscopy is the study of matter interacting with electro-magnetic radiation (e.g. Light). In this lab‚ we will separate some light sources in to constituent colors and find out the wavelength of some atomic emissions. We will also try to compare the line spectra found from gas discharge tubes and flame emissions. Finally‚ we will measure the absorbance of Copper sulfate
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