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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test the effectiveness of banana leaves for making a paper. Research Design The research design that will be used is Two group design since two comparable groups will be used as experimental and control groups. The experimental (Paper from Banana Leaves) will be compared to the flammability and texture of the control group (commercial paper). Table 2.0. The table showing the texture of the paper of experimental and control group Respondent Experimental Group (Paper from Banana Leaves) Control Group
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Extraction of metals The History of Metals. Metals have been used by people for many thousands of years. Gold and silver‚ found as native metal‚ were used both as jewellery and as a status symbol - nothing new there. These metals were known in the Stone Age‚ but gold and silver are too soft to be used as tools. The first really useful metal to be discovered was bronze. This began the Bronze Age. Bronze was used extensively for tools and weapons in Asia and Africa from 4‚500 B.C. (6‚500 years
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“Banana Peelings as Charcoal Briquette” Charcoal (Cooking fuel) Prior to the industrial revolution charcoal was occasionally used as a cooking fuel. Modern "charcoal briquettes"‚ widely used for outdoor grilling and barbecues in backyards and on camping trips‚ imitate this use‚ but are not pure charcoal. They are usually compacted mixtures of sawdust with additives like coal or coke and various binders. Charcoal is the dark grey residue consisting of carbon‚ and any remaining ash‚ obtained by
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DNA EXTRACTION In extracting chromatin from the cells of wheat germ there are seven steps to follow. The optimal cell to use would be the polyploidal eukaryotic. Eukaryotes have nucleus membrane-bound organelles‚ while prokaryotic does not. The polyploidal eukaryotic cell has DNA that is held in the nucleus while the prokaryote has DNA that floats freely around the cell. The DNA of eukaryotes is more complex and extensive than the other. Prokaryote is a bacterial cell that
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Name: Leung Chun Wai Student no.: G20554292 Topic: (NT3048) Smoke extraction design for large space such as atrium 1. INTRODUCTION Atrium inside a building is an old architectural concept for about two thousand years. This concept has been developed and extended to modern buildings. Current trend of atrium design provides an ‘ideal’ external environment to the occupants with a large undivided space. The major problem for fires in atrium is hot and toxic gases accumulating and go down in the atrium
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Blood Bananas: Chiquita In Columbia Overview: This complex case touches on fundamental questions of ethics and morality while displaying the inherent risks and rewards associated with operating a business abroad in geographies with histories of violence and civil unrest. The case exposes the challenges faced by Chiquita when trying to maintain production and profitability while also protecting its employees in a hostile situation. In this case‚ the lines of the ethics and morality are not as straightforward
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the truth is the cupcakes are only okay and if you’re going to eat one cupcake while you’re in New York I’d suggest Baked By Melissa instead. The thing Magnolia Bakery does really well is banana pudding. Real talk‚ I don’t even like bananas‚ and I’m not a huge pudding fan‚ and I’m still obsessed with their banana pudding. I’ve been dying to make it for months and last weekend Lemon‚ my girlfriend and I had a joint birthday party‚ so it seemed like the perfect excuse to make a million desserts. I
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Objective: To extract caffeine from tea powder using polar - nonpolar solvent extraction technique. Theory: The technique used to separate an organic compound from a mixture of compounds is called Extraction. Extraction process selectively dissolves one or more of the mixture compounds into a suitable solvent. The solution of these dissolved compounds is referred to as the Extract. Here the organic solvent dichloromethane is used to extract caffeine from an aqueous extract of tea leaves
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process of observing a banana‚ involuntary recurrent memories and repressed thoughts and emotions were recalled into my consciousness. Banana is an ordinary produce that if one devotes time to observe and analyze‚ he or she might discover that it associates with much more than just monkeys. With that being said‚ my observations of the banana directed my consciousness towards the sensation‚ perception‚ and thoughts of my inner process. The most obvious characteristics of a banana are its color and shape
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