Ethanol

During the extraction process, the sand bath was set to 20℃. The 1.00 gram of ground nutmeg was transferred to the round-bottom flask (RBF) using the plastic funnel. Three milliliter of tert-butyl methyl ether and two or three boiling chips were added into the flask. The black plastic connector was used just like the distillation column with air condenser set-up. The flask was clamped to the ring stand using 3-pronged clamp. The flask was lowered into a slightly depression in the sand without…

of ARP microemulsion shows in Table 1. 4. Preparation of Arp Solution The ARP solution (AS) meant for comparative evaluation of ME-based systems was prepared by dissolving ARP (150 mg) in a mixture of 8 mL polyethylene glycol, 1 mL water and 1mL ethanol (95%, vol/vol) resulting in a solution of…

carboxylic acid and alcohol. 95% ethanol and glacial acetic acid are synthesized with the presence of concentrated sulfuric acid using Fischer Esterification method. It is a method which esters are obtained by refluxing the parent carboxylic acid with the appropriate alcohol with an acid catalyst. The equilibrium can be driven to completion by using an excess of either the alcohol or the carboxylic acid, or by removing the water as it forms. The reaction between ethanol and glacial acetic acid…

comparison. The kinetics model assumes that the yeast both consume and hydrolyze the sucrose into glucose and fructose. The rate of sucrose hydrolysis is shown on Eq. 1 below. One mole of glucose or fructose (180 g/mol) will be fermented to two moles of ethanol (46 g/mol) and two moles of carbon dioxide (44 g/mol). The reaction pathway for the biochemical conversion of sucrose is supposed to follow the pathway shown by Figure 2.…

2. Experimental 2.1. Materials and reagents Analytical grade bentazon was purchased from Sigma-Aldrich. Acetonitrile, methanol, ethanol, chloroform and acetic acid were purchased from Merck and were analytical or HPLC grade. Methacrylic acid (MAA) as the functional monomer, ethylene glycol dimethacrylate (EDMA) as the cross-linker and α,α′-Azoisobutyronitrile (AIBN) were purchased from Merck (Hohenbrunn, Germany). MAA was distilled under vacuum to remove the inhibitor prior to polymerization.…

Yeast are single-celled fungi. Yeast cells use an aerobic process called alcoholic fermentation to produce energy in the form of ATP. Not only does this process convert glucose into ATP, but it also produces ethanol and carbon dioxide. Along with a few other classmates, I performed the “alcoholic fermentation in yeast” lab to find the ideal conditions for carbon dioxide production in yeast. Organisms obtain the energy they need from food. Yeast cells use sugars, such as glucose, as a food…

TEE JIN FENG 15SPE072X 27012016 EXPERIMENT 7: Cannizzaro reaction and reaction of benzaldehyde with ethylene glycol Introduction: From the first experiment, the reaction of benzaldehyde and potassium hydroxide will produce two products which are benzyl alcohol and benzoic acid. We are going to look at how to get this two products separated by using their different chemical properties. For the second experiment, benzaldehyde ethylene acetal is formed when the reaction done under acidic…

tubes and took the melting points of each sample, through the use of both a water bath and commercial heating apparatus. Results Recrystallization: Purification of Solids Test tube # Solvent Observations 1 Cyclohexane The liquid is clear 2 Ethanol The solution is a tinted yellow liquid at room temperature 3 Methanol Slight brown tint, unknown mostly dissolved 4 Hexanes The liquid is a very clear color Figure 1: Table of possible solvents and their results 1. The solvent that seemed most…

of a heterogeneous mixture Ji,) be a pure substance is corrccl for ___ _ 19) A) elements B) homogeneous mixtures Ohcterogeneous mixtures D) compounds 20) Which of the fo llowing is an example of a lieterogeneous mixture? @ oil and vinegar B) 70% ethanol solution 20) C) air D) sugar water 3 21) According to the Thomson model, what is the relative charge on an electron? 21) ~+2 w-1 C) +1 D) -2 E) none of the above 22) A pure substance has been isolated in the laboratory. Based on the two…

There are many different kinds of alcohol, the commonest being called ethyl alcohol. Ethyl alcohol, or ethanol, is present in varying amounts in beers and wines, and in distilled liquors such as whiskey, gin, and rum. Alcohol consumption touches many million people around the world. The use of alcohol depends on an individual’s social, cultural, or religious…