Synthesis of Salicylic Acid from Wintergreen Oil By: Matthew Rook Introduction: Experiment 3: Synthesis of Salicylic Acid from Wintergreen Oil Purpose: The purpose of this lab was to get students familiar with glass materials often used by organic chemists and how to reflux a mixture and to filter its precipitate, through teaching students how to create salicylic acid from methyl salicylate (wintergreen oil). During the experiment students learns how to use solubility data and then the students learns how […]
Gas Chromatography to Determination of Percent Alcohol in Crest Pro Health and Listerine Mouthwashes
Determination of Percent Alcohol in Crest Pro Health and Listerine Mouthwashes via Gas Chromatography By: Kiley Morgan, JT Ray, Amy Sizemore, Andrew Puetz Introduction Mouthwash is an antiseptic solution used as a hygienic product for oral health. This antiseptic can kill bacteria, prevent and combat plaque buildup, gingivitis, and bad breathe. The two mouthwashes analyzed in this experiment are Crest Pro Health Mouthwash and Listerine Mouthwashes. These two mouthwashes contain different active ingredients. Listerine’s active ingredients to kill bacteria […]
Introduction The method utilized in this study involves the bomb calorimetry, which is an analysis method that is widely used in chemistry to determine the energy of combustion of a sample. The instrument used is a calorimeter, a device which measures gross heat, which is the energy of combustion and enthalpy of formation of the hydrocarbon combusted. The sample in this particular experiment involves used cooking oil, a biodiesel, which is compared against a conventional diesel. According to a publication […]
Concentration of Nitrate Ions and Chloride Ions in Wastewater By: Jenny Mathe Abstract: An experiment was conducted in order to test the concentration of ions in wastewater that is being deposited into Lake Onondaga. Ions, such as NO3– and Cl– can pollute the water by stimulating algal growth and remove phosphate from the water, respectively. The experiment consisted of testing the both the nitrate and chloride ion through spectrometry and titration in order to determine the concentration of the ion […]
Esterification of Benzocaine By: Nick Makowski and Monica Schaeffer Purpose: To practice the techniques of refluxing and vacuum filtration to perform an esterification reaction to create benzocaine from p-aminobenzoic acid Chemical Structures/Reactions/Mechanisms: Results: Physical Appearances- After ethanol and sulfuric acid added to p-aminobenzoic acid, solution became clumpy and then turned into a white foam After refluxing, solution became more solid Upon filtration, white benzocaine crystals formed Mass of Substances- p-aminobenzoic acid: 1.201g benzocaine: 0.368g Na2CO3: 11mL Melting Point- Known= 88-90 […]
By: Alexander Jones Author Note: Alexander M. Jones, Department of Environmental and Plant Biology, Ohio University. This research was supported by the desire to assist in the education about ethnobotanicals as well as the importance and efficacy of modest homemade medicines from flora found in the field. Any correspondence or inquiries regarding this article and the information presented herein can be directed to Alexander Jones, Department of Environmental and Plant Biology, Ohio University, Athens, Ohio 45701. Contact: [email protected] Abstract: […]