Abstract: Experiment 55 consists of devising a separation and purification scheme for a three component mixture. The overall objective is to isolate in pure form two of the three compounds. This was done using extraction‚ solubility‚ crystallization and vacuum filtration. The experiment was carried out two times‚ both of which were successful. Background Information: This experiment combined all the knowledge of the previous labs performed throughout the semester. An unknown mixture containing
Premium Solvent Solubility Ethanol
Introduction The purpose of this experiment is to synthesize methyl nitrobenzoate from methyl benzoate‚ concentrated HNO3‚ and concentrated H2SO4 via an electrophilic aromatic substitution reaction. Reaction Procedures/ Observations Use a 50 ml beaker to cool about 6 ml of concentrated sulfuric acid in an ice water bath. Weigh the vial containing about 3 grams of methyl benzoate and add it to the cooled sulfuric acid. Next pour about 2 ml of sulfuric acid to the nitric acid in the vial
Premium Chemistry Sulfuric acid Hydrogen
Faculty of Science and Mathematics Universiti Pendidikan Sultan Idris LABORATORY REPORT SBF1013: GENERAL PHYSIOLOGY Semester 1 Session 2012/2013 LABORATORY 7b: Photosynthesis (Starch production during photosynthesis) PREPARED BY: EVA KHO JIUN TYNG E20111002619 YII YUANN CHI E20111002618 LIM SHIU MAN E20111002628 GAYTHIRI A/P SEENEE E20111002635 LAAVANYA A/P NYANASAIGRAN E20111002578 KAVITHIRAKASWIN A/P KUMARCHELVAN E20111002632 BAAVITHRA A/P GOPAL KISHNAM E20111002590
Premium Photosynthesis Plant Starch
Marketing Report Automated Home Brewing Machine and Supplies Executive Summary My goal with this product is to obtain at least $500K in sales per year within 2 years of today. The major market is home brewers who want a self-contained solution that removes the barriers associated with producing many small high-quality batches simultaneously. The major competitors are current automated brewing products‚ manual brewing products‚ in-home bar setups‚ craft beer keg purchases‚ and other craft
Premium Beer Brewing Distilled beverage
procedure demonstrates the nitration of methyl benzoate to prepare methyl m-nitrobenzoate. Methyl benzoate was treated with concentrated Nitric and Sulfuric acid to yield methyl m-nitrobenzoate. The product was then isolated and recrystallized using methanol. This reaction is an example of an electrophilic aromatic substitution reaction‚ in which the nitro group replaces a proton of the aromatic ring. Following recrystallization‚ melting point and infrared were used to identify and characterize the product
Premium Benzene Sulfuric acid Organic chemistry
COS-7 cells were provided. After washing the coverslip with Phosphate Buffer Saline (PBS)‚ one coverslip was treated with the control solution‚ and the other was treated with the X drug. Then‚ in order to preserve the cell‚ methanol was added to both coverslips. Since methanol coagulates proteins‚ it was also used to permeabilize the cell membrane. Once the cells were fixed and permeabilized‚ blocking buffer was added to each coverslip to block the nonspecific antibodies in order to keep them from
Premium Bacteria Microbiology Escherichia coli
http://www.sciencelab.com/msds.php?msdsId=9927165 (accessed Feb 12‚ 2012). Acetone; MSDS No. 67-64-1 [Online]; Millenia Production: Wichita‚ KS‚ March 26‚ 1996. http://www.phy.duke.edu/research/photon/qelectron/acetone_msds.pdf (accessed Feb 12‚ 2012). Methanol; MSDS No. 76-56-1 [Online]; Microbial ID: Newark‚ DE‚ May 05‚ 2011. http://www.midi-inc.com/pdf/MSDS_Methanol.pdf (accessed Feb 12‚ 2012). Water; MSDS No. 7732-18-5 [Online]; Mallinckrodt Baker‚ Inc.: Nov 17‚ 1999. http://www.chem.tamu.edu/class/majors/msdsfiles/msdswater
Premium Psychology Family Management
Then the polarity was increased using 2 % Methanol in Ethyl acetate to 50 % Methanol in ethyl acetate. 8 % of methanol and 92 % of ethyl acetate concentration was found to be the best concentration and after concentrating all fractions of these concentrations‚ approximately 7 to 8 mg of quercetin was obtained. 4.2 Thin layer chromatography TLC profiles were carried out for the fractions‚ performed using the solvent mixture of toluene: ethyl acetate: methanol in the ratio of 5:3:2 (v/v/v) and this
Premium Vitamin C Nutrition Onion
Identification of a Conjugated Diene from Eucalyptus Oil Introduction: When two carbon-carbon double bonds are positioned next to one another‚ a conjugated diene is formed. Conjugated dienes undergo a cycloaddition reaction with certain double bonds to afford cyclohexenes and related compounds. The reaction is named Diels-Alder. The Diels-Alder reaction is between 1‚3-butadiene and ethylene to produce cyclohexene + dienedienophile. The mechanism of the Diels-Alder reaction is classified as a
Premium
Version 017 – Exam 1 – Laude – (52455) This print-out should have 30 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 1 003 6.0 points What would be pH of a 1 M solution of a very expensive weak base‚ unobtainamine‚ whose pKb is 3.4? 6.0 points 1. 12.3 correct Consider a reaction with ∆Hrxn = 997 kJ · mol−1 . Which of the following pairs of K values and temperatures is possible for this reaction? 1. K1 =
Premium Pressure Chemical equilibrium