with H2SO4 as another solvent‚ synthesize salicylic acid. The final step involves purify the product to produce as pure a sample of salicylic acid as possible. This process allowed for the successful production of 1.406g salicylic acid‚ an 82.70% yield. The NMR and IR both produced images that correlate with the known spectrums indicating a pure product. The melting point range was slightly wider‚ though did encompass the accepted melting point values. Discussion: Reaction OH O OCH3 2) H2SO4
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Experiment 15 & 16: Preparation of 1-bromobutane‚ an SN2 reaction Preparation of 2-chloro-2-methylbutane‚ an SN1 reaction Introduction The purpose of this experiment is to synthesize 1-bromobutane from 1-butanol and sodium bromide. In order for this reaction to reach completion there are four major operations that need to be performed. The four major operations include refluxing‚ simple distillation‚ separation‚ and drying. To begin‚ in order for the compounds to react they will be dissolved
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→ + NaCl Yield Calculations: [pic] [pic] Sodium benzoate is the limiting reagent due to the lesser number of moles. [pic] The theoretical yield of Benzoic Acid is 1.695 g. The actual yield of Benzoic Acid is: Actual amount: 2.09 g Sodium benzoate‚ 5.2 mL hydrochloric acid Calculations: [pic] [pic] [pic] The percent yield of this experiment is: [pic] . Methods/Procedures (1 point) This
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Consider the following reaction: [pic] What mass of CCl4 will be formed if 1.20 moles of methane react with 1.28 moles of chlorine? The percent yield is a ratio of the ____________ yield to the _____________ yield‚ multiplied by 100%. 20. 0.1156 g of a compound reacted with oxygen gives 0.1638 g CO2 and 0.1676 g of H2O‚ rest is nitrogen. What is the formula of the compound? CO2 = 44.01 g/mole H2O=18.02 g/mole
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to form. Data: Mass of magnesium: .074 grams Mass of 1‚1-diphenylethanol: .037 grams Bromobenzene used: .32 mL Acetophenone used: .23 mL Melting range of 1‚1-diphenylethanol: 80°C-81°C Calculations: acetophenone is the limiting reagent Analysis: The main goal of this lab was to create a Grignard reagent and then use that same reagent to produce a tertiary alcohol. This was accomplished by reacting the Grignard reagent with acetophenone. The end product was 1
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mixture was then washed to remove excess acids and bases and rotovapped. DEET was synthesized from the experiment as NMR and IR data show strong peaks comparable to the literature values expected for DEET. The percent yield of the product at 56.1% could have been higher by adding more of the limiting reagent toluic acid. Introduction: In this experiment DEET is synthesized from m-toluic acid that has undergone a nucleophilic acyl substitution with thionyl chloride. The nucleophilic acyl substitution proceeds
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atmosphere gradually increases (Oglesby). Humans escalate the amount of greenhouse gasses in the atmosphere by burning fossil fuels and by many manufacturing processes (Crowe). In the U.S.‚ from 1990-1997‚ carbon dioxide emissions have increased 10.7 percent (Elston). This activity and a warming atmosphere are causing drastic
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Synthesis of trans-9-(2-Phenylethenyl)anthracene Introduction The purpose of this experiment was to convert carboxyl compounds into alkenes. While this reaction yields both the E and Z isomers‚ it is preferred over other reactions due to the lack of uncertainty of where the double bond is positioned. Also the stability of an ylide determines which isomer is the major product. 1 Experimental: Compounds Benzyltriphenylphosphonium chloride 9-Anthraldehyde 50% Aqueous NaOH DCM Product Formula weight
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moorland - An ash-grey‚ structure less‚ silica rich E or elluvial horizon‚ generally grey in colour - Humus (Bh) and/or iron/aluminum (Bs) enriched illuvial horizons‚ generally strong brown colours - Podzols are generally infertile and are physically limiting soils for productive use. - They are extremely acid‚ have high C/N ratios - are lacking in most plant nutrients‚ except within the H and upper mineral horizons‚ where they are used for arable cropping - Long-term fertilization is required.
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-Get into the world of Fun! This handout is about population ecology‚ YEAH!!!- [Chapter 53 Handout] What is a population? Population: Group of individuals of the same specie living in the same general area. * Why is population ecology important? * Allows for monitoring of organisms impact on environment and also helps to regulate impact. * Helps to preserve populations of organisms. * Ecologists efforts have helped to preserve endangered animals such as the BALD EAGLE TOOLS
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