Purpose: I will identify an unknown liquid by obtaining an average density & boiling point for my liquid and comparing them with the known densities & boiling points of liquids in the CRC handbook of Chemistry & Physics. I will perform these experiments using three different measuring tools (graduated cylinder‚ burette & pipette) to evaluate the precision of each one. Results: Density 1‚ 2 & 3 calculated by using graduated cylinder to obtain volume. Density 4‚ 5 & 6 calculated by using volumetric
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Production of materials 1B – identify the industrial source of ethylene from the cracking of some of the fractions from the refining of petroleum Industrial source of ethylene (ethene) * Obtained from Crude oil – fractional distillation * Heated to high temps * Components vaporise and rise up tower where condense and collect * Lower the boiling point‚ higher up tower compound rises * Separates crude oil into fraction each with different boiling range - Catalytic Cracking
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POLLUTION SHIVALLI RAGBIR UPPER SIX B ENVIRONMENTAL SCIENCE OIL SPILL IN TRINIDAD AND TOBAGO The Petrotrin oil spill was a series of oil spills that transpired on the island of Trinidad and Tobago. There were a total of eleven oil spills that took place in December 2013. The first spill began when the 16-inch sea line No 10‚ operated by the Trinidad’s national oil company‚ Petrotrin‚ ruptured at the bottom of the Gulf of Paria near the company’s Pointe-a-Pierre refinery
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1998) would have less error than those liquids containing stronger intermolecular forces. For this experiment‚ two volatile liquids were used. The first was methanol and the second was an unknown liquid‚ which may have been methanol‚ ethanol‚ iso-propanol and hexane. Methanol is a clear‚ flammable and toxic liquid which is sometimes used as a vehicle fuel. Its accepted molecular weight value
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major constituents for the sauce samples and can be produced as a result of either lipolysis or from amino acid metabolism in terms of valine deamination [13]. Volatile compounds in the most of samples were identified trimethylamine (TMA)‚ acetone‚ 1-propanol‚ acetic acid‚ 2-butanone‚ benzene‚ propanoic acid‚ 3-methyl-1-butanol‚ 2-methyl-1-butanol‚ butanoic acid‚ 2-methyl butanoic acid‚ 3-methyl butanoic acid‚ 4-methyl pentanoic acid‚ phenol and benzaldehyde. It has been reported that TMA‚ benzaldehyde
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Reactions of Carbonyls-Aldehyde/Ketone Analysis: Introduction: The carbonyl group is a rich source of many important reactions in organic chemistry‚ with two fundamental properties that are primarily responsible for its diverse chemistry. The first is the polarization of the. Carbon-oxygen pi bond‚ owing to the relatively high electro negativity. The second property of a carbonyl function is to increase the acidity of the alpha-hydrogen atoms‚ which are the hydrogen’s
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The reaction between alpha-amino acid and ninhydrin involved in the development of color are described by the following five mechanistic steps: alpha-amino acid + ninhydrin ---> reduced ninhydrin + alpha-amino acid + H2O alpha-amino acid + H2O ---> alpha-keto acid +NH3 alpha-keto acid + NH3 ---> aldehyde + CO2 Step (1) is an oxidative deamination reaction that removes two hydrogen from the alpha-amino acid to yield an alpha-imino acid. Simultaneously‚ the original ninhydrin is reduced
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Chapter 18 Ethers & Epoxides; Thiols and Sulfides Assigned Reading from McMurry: Read Sections 18.1 through 18.9; not responsible for “Focus on … Epoxy Resins & Adhesives‚ pp. 697-698). Recommended Problems from McMurry: 18.1a-e;18.18.2;18.3a-d; 18.4; 18.5a-d; 18.6a-b; 18.7a-b; 18.8; 18.9; 18.10; 18.11; 18.12a‚b; 18.13a‚b; 18.14a-c; 18.16a-f; 18.17; 18.18; 18.19a-c; 18.20; 18.21; 18.22; 18.23a-e; 18.24a-I; 18.25a-f; 18.26a-d; 18.27; 18.28; 18.29ad; 18.30a-e; 18.31; 18.32; 18.33; 18.34; 18
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the most rapid bactericidal action of all antiseptics? Alcohol based cleansers have more rapid action than products containing other antiseptics such as; chlorhexidine gluconate or providone iodine. Which alcohol is the most effective? N-propanol Which alcohol is the least
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combined ether extracts were washed with five 25- mL portions of H2O‚ and then dried over anhydrous K2CO3. The ether portion was then decanted into a flask and chilled in an ice-water bath. A 2:10 (v/v) mixture of concentrated hydrochloric acid and 2-propanol was added dropwise with stirring to the flask until the contents were acidic‚ determined with pH paper. The final product was collected by vacuum filtration‚ washed with diethyl ether‚ and dried to yield
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