Discussion: Extraction and crystallization- The purpose of this lab was to extract and crystallize compounds in a mixture using acids and bases. 1 gram of the unknown was dissolved into 30 mL of ethyl acetate. The mixture was then transferred to a separatory funnel. Using aqueous solutions of different pH we were able to separate organic acids‚ bases and neutral compounds from each other. Using three 10 mL portions of HCl‚ we reacted the HCl with the base in solution. This made it possible to
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4.0 What to consider as academic pharmacy? One who considered a career in academic pharmacy should think of the following criteria: 4.1 Passion to educate As a lecturer‚ one should have passion in educating the students as well as shaping their future. The lecturer should have the patience to teach the students and help them out to solve their problem in studies. 4.2 Continuous learning Being a professional in scientific field‚ one should never stop learning to update their knowledge with
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A formal report is a methodical presentation of a subject or an action which includes summaries of important points as well as appendices of tangential and secondary points. In simple words‚ a formal report is used to formally document the outcomes of an experiment‚ a design or an information which can provide the readers a clear understanding of why and how the experiment or action is done and what it concludes. Apart from readers understanding‚ a formal report is also prepared in order to record
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Experiment 2: Extraction – Evaluation Summary Labs reports must be typed and chemical structures must be drawn with ChemDraw. Report must not exceed three pages (including this page). Page limit does not include any attached spectra or references. ** Deductions for hand written report/structures and exceeding page limit ** Report Breakdown Data/Results: _________________ /10 Discussion: _________________ /10 Report Total: _________________ /20 Other Lab Marks
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INVESTIGATORY PROJECT Oven-Dried Blackberry Fruit As A Substitute For TEA Abstract Our country imports commercial tea from tea-producing countries. This is why the tea we drink is expensive. This research project is aimed at finding whether oven-dried blackberry fruit can be a substitute for commercial tea. This study would also like to determine other possible uses of the fruit‚ which is abundant when in season. Samples of blackberry fruit went through oven-drying and then pulverized
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Caffeine and Coffee Consumption Maddie Schierbeek Psychology 7th block Why do so many people‚ especially high school students consume so much caffeine? Perhaps 70-minute classes are too much to handle. Maybe the AP course load is overwhelming. Or perhaps problems at home cause a lack of sleep. Everyone has their reasons. On the other hand‚ there may be a scientific reasoning behind it. Caffeine highs are followed by caffeine lows. This cycle results in a need for caffeine: addiction. Researchers
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reaction will go. I also predict that a strong acidic or basic solution will slow down or prevent the reaction. Materials and Methods On February 12th 2013‚ at 2pm we began our experiments. We first had to create and extract the catechol oxidase from potatoes‚ which we did by blending whole potatoes and DI water in a blender for approximately 30 seconds. Once the puree was made‚ we immediately put it on ice‚ in an attempt to slow down the conversion to benzoquinone. To test the
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In his book Caffeine Blues a famous researcher‚ health educator‚ and clinical nutritionist Stephen Cherniske compares remaining healthy and strong throughout life to a battle. “Caffeine is the Trojan horse. It looks like a gift but instead delivers adrenalin stress‚ low blood sugar‚ mood and energy swings‚ fatigue‚ depression‚ malnutrition‚ and disturbed sleep”. Although caffeine is considered a mild drug‚ the consequences of caffeine addiction are rather severe and include physical and mental health
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determining of the main groups of chemical constituents present in Licania arborea leaves. Abundant amount of amino acids‚ phenolic compounds‚ triterpenoids and tannins‚ moderated presence of flavonoids and leucoantocianidines‚ and the absence of nafto- and antroquinones‚ cardiotonics and alkaloids was observed. The high content of phenolic compounds happens to be interesting as there is a high probability polar extract from the leaves of this plant have antioxidant activity. Preliminary experiments with trypan
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Purpose Use a standardized potassium permanganate solution to analyze an unknown iron solution by using redox titration. Theory Reduction-oxidation titration is an analytical method based on electrons transferring between an oxidizing agent and a reducing agent in solutions. Chemical analysis can be built on Redox titration if four criteria are met: a) The reaction is completed in a thermodynamically spontaneous condition. b) The reaction is fast enough to give an operational result instantly
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