Solvents used were water‚ methanol‚ n-butanol‚ ethylene glycol‚ acetone‚ hexane‚ toluene‚ ethyl acetate‚ and dichloromethane. Then added to the vials was 0.5 mL of isooctane in each one. The vials were then swirled and observed to determine solubility. In part two of the experiment‚ 0.5 mL of concentrated sulfuric acid was
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Additional Questions: 1. H H H C C H H C C H C H H C H H Compound A Compound A is an intermediate compound found in a production plant attempting to synthesise n-hexane. a) List three physical properties of alkynes. b) Give the IUPAC name of compound A. [3 marks] [2 marks] c) There are several ways to form the final product from Compound A. An operator has decided to use Pt catalyst to react with Compound A. Write the complete chemical reaction equation. [3 marks] d) The quality assurance
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COLUMN AND THIN LAYER CHROMATOGRAPHY Group 9 RAMOS‚ Sharina Joy; REYES Aina Marie; REYES Jallisa Maan; RUBIO‚ John Michael; SABINO Patricia Anne; SANTOS‚ Carlos Rafael ABSTRACT To separate the colored components of siling labuyo and to determine the purity of the components‚ the students performed a column and thin or solid-liquid chromatography procedure. The solid may be almost any material that does not dissolve in liquid phase. But for this experiment‚ the solid used by the students was
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solution of 0.5mL was added‚ dropwise w/ mixing. 3M NaOH was added until the pH of the solution was neutral. The product was vacuum filtrated and pressed dry. The column was packed by adding cotton‚ then sand to the tip. A slurry of adsorbent and hexanes was created‚ then poured into the column. Most of the remaining solvent from the slurry was drained‚ but some minor bubbles formed in the sand. The compound was dissolved in a few drops of dichloromethane. 0.303 grams of adsorbent was added‚ and the
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going be slighly different from what I found on Internet. aim: my aim is to look at what temperature and how long the following alcohol (methanol‚ I-butanol‚ Ethanol and Hexane) reach their boiling point and comparing the results that I found on internet and mine. Materials: Alcohol: Ethanol‚ I-Butanol‚ Ethanol and Hexane Four Test tubes (boiling tube) Test tubes holder Data logger Hot plates Bunsen burner Beaker 500 ml Measuring cylinder Independent Variable: The alcohol Controlled variable:
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chemicals. Nitric acid produces toxic nitrogen dioxide fumes during the reaction. Use gloves and a hood‚ avoid contact with the acids‚ and do not breathe their vapors. The nitro naphthalene is a suspected carcinogen; avoid contact. The mixture of hexanes is very flammable; keep flames away. Procedure: Into a 5-ml conical vial‚ 1.0 ml of mixed 1:1 sulfuric acid and nitric acid was added. Approximately‚ 0.610 g of finely divided naphthalene was added in small portions to the solution while stirring
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Retrieved from: http://www.stenutz.eu/chem/solv6.php?name=1-propanol Webmaster Webmaster. (2013). Ethyl Acetate. Retrieved from: http://www.stenutz.eu/chem/solv6.php?name=ethyl+acetate Webmaster Webmaster. (2013). Hexane. Retrieved from: http://www.stenutz.eu/chem/solv6.php?name=hexane Webmaster Webmaster. (2013). 2-Butanol. Retrieved from: http://www.stenutz.eu/chem/solv6.php?name=2-butanol Sigma-Aldrich
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Purification of Acetanilide by Recrystallization Method Dupaya‚ Julian Victor M. Estacio‚ Jerwin Caesar A. Farnacio‚ Rebecca Ruth Gabito‚ Jose Luis F. Gallo‚ Cian Carlo M. Galvez‚ Joshua M. Group no.4‚ 2D-Medical Technology‚ Faculty of Pharmacy‚ University of Santo Tomas ABSTRACT Recrystallization is a method for purifying solid organic compounds. The process is dissolving the solid to be purified in a hot solvent and cooling the solution slowly‚ this allows impurities with different
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Ethical and Unethical issues about Coca Cola http://www.bigbrummie.co.uk/ The company has come under fire in the last few months for the way in which its workers are treated in Guatemala. On February 25‚ 2010‚ Coke was sued by those Guatemalan labourers‚ who claim that they‚ “endured a campaign of violence” from the people who worked for the bottling or processing plants owned by Coke. (Unethical) In 1998‚ Coca-Cola set up a bottling plant in Perumatti in the southern state of Kerala. Since
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Experiment #8 – properties of Alcohols and Phenols Introduction As has been mentioned before‚ over 20 million organic compounds have been identified. If each substance had to be studied as an entity completely separate from all the other substances‚ the study of organic chemistry as a whole would be impossible; that is to say‚ even more impossible than you currently believe it to be. Fortunately‚ the subject can be organized and it is often organized around the concept of the functional group
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