In other words‚ for any reaction‚ at least the activation energy is required to start the reaction. In a publish literature describing the hydrolysis of ethyl acetate to produce acetic acid and ethanol‚ the activation energy for the hydrolysis of the ethyl acetate is calculated to be 24.8 kJ/mol. The literature value differs significantly from the experimental value because of various reasons. One‚ according to the literature‚ the hydrolysis of
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The apparatus and chemicals that were used in the previously mentioned experimental steps are summarised in table 3.0. Steps Materials Reagents Collection of hair samples 1. Stainless Steel Scissors 2. Plastic bags 3. Gloves 1. Hot water 2. Ethanol Washing the hair samples 1. Forceps 2. 100 ml beakers 3. Electronic weighing balance 4. Magnetic stirrer 5. Magnets 6. Filter paper 1. Diethyl Ether 2. Acetone 3. Deionised water 4. pH 6 Shampoo Digestion of hair
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from lactate (Madur‚ 2009). Anaerobic respiration can be further divided into two types; namely‚ alcohol fermentation and lactic acid fermentation. In alcohol fermentation‚ pyruvate (product of glucose in glycolysis) is converted to 2 molecules of ethanol (C2H5OH) and 2 molecules of carbon dioxide (CO2) while in lactic acid fermentation‚ pyruvate is reduced directly into lactic acid (Campbell and Reece‚ 2008). A good example of organism which produces ethyl alcohol and carbon dioxide through the process
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for 10 min; the mixture was left undisturbed for 30 min and then filtered. The residue was washed twice with 10 ml of dichloromethane and then combined with the filtrate. The organic phase was evaporated to dryness and then dissolved in 1 ml of 70% ethanol to yield the test sample. In the second method (Method 2)[12]‚ 12 g of plant material was extracted for 6 h in a Soxhlet extractor with methanol. The extract was diluted with distilled water and then partitioned against petroleum ether‚ and finally
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2-naphthol derived Mannich base 1-((4-methylpiperazin-1-yl)(phenyl)methyl)naphthalen-2-ol (MPN) was synthesized according to the general procedure described in the literatures [13‚ 14]. The 2-naphthol (4.33 g‚ 0.03 mol) was dissolved in 30ml of ethanol and it was mixed with N-methylpiperizine (3.0 mL‚ 0.03 mol) by continuous stirrer at room temperature until a clear solution was obtained. The benzaldehyde (3.0 mL‚ 0.03 mol) was added slowly to this mixture with constant stirring. After 48 hours
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CHAPTER I THE PROBLEM AND ITS SETTING Introduction The implementation of liquor ban in Davao city is to encourage a safe and welcoming environment in the public places there are alcohol bans in certain areas in Davao. These alcohol bans are a measure to reduce the negative impacts that drinking alcohol has in public places in a particular area. The government officials also provide the police with an appropriate tool for dealing with the antisocial behavior caused by drinking alcohol. Although
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Andrew Aluko March 28‚ 2011 Sports and Nutrition Professor Saullo Alcohol and Athletics Alcohol‚ more specifically ethyl alcohol or ethanol‚ is a depressant that provides 7 kCal of energy per gram‚ and is the most abused drug for athletes and non-athletes in the United States. Prior to my research on alcohol‚ I assumed that alcohol abuse was not prevalent among college athletes‚ outside of the occasional partying that normal college students partake in as well. But according to Lifestyles
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The chemistry of hairspray What is hairspray: introduction Hair spray (or hair lacquer) is a common household aqueous solution that is used to keep hair stiff or in a certain style. Weaker than hair gel‚ hair wax‚ or glue‚ it is sprayed to hold styles for a short period of time. Using a pump or aerosol spray nozzle it sprays evenly over the hair. Hairspray was first developed and manufactured in 1948 by Chase Products Company‚ based in Broadview‚ Illinois.Its active ingredient is a suitable
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How does Alcohol affect our society and our Health? An alcoholic beverage is a drink which has ethanol in it. There are 3 types of alcohol‚ beer‚ wine and spirits. The highest percentage of Alcohol is normally in spirits and the lowest is in beer. Alcohol is legally drunken in most countries however‚ “100 countries have laws regulating their production‚ sale‚ and consumption”. In England one is allowed to be served alcohol when they are 16 and over however one can only buy alcohol when they are
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are stable under a wide variety of conditions and need not be refrigerated‚ except to inhibit growth of microorganisms for long-term storage. After use they should be washed for 30 minutes with 0.5M NaOH. Ni-NTA matrices should be stored in 30% ethanol to inhibit microbial growth. The matrix can be stored for up to one week in any of the denaturing buffers. Reuse of Ni-NTA Resin The reuse of Ni-NTA resin depends on the nature of the sample and should only be performed with identical recombinant
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