Jarrett Sears Dr. Hummel Chem 121 2/7/13 A Chemical Reaction between Tin and Nitric Acid Introduction: Finding the products made from the components of tin metal and nitric acid is the ultimate objective of this lab; the formula of the products will be found in the CRC handbook thereafter. Procedure: First‚ obtain a clean crucible‚ and heat it under a Bunsen burner until it is as hot as possible‚ about 15 minutes within a fume hood unit. The Bunsen burner will be used under the fume
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How Acetylsalicylic Acid was Discovered Acetylsalicylic Acid in its earliest form was a powder for the bark and leaves of the willow tree. Hippocrates‚ who lived sometime between 460 B.C. and 377 B.C‚ founded it. This “Miracle Drug” that was able to relieve pains was later looked into with further detail by Johann Buchner. He isolated a tiny amount of bitter tasting yellow‚ need- like crystals‚ and called salicin. By 1829 French Chemist Henri Leroux had improved the extraction procedure to
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My experience in shipboard is very memorable for me‚ every day your going to treasure it. My experience goes this way‚ trip to Manila. I’m very excited and when at the port i’m very disappointed because our CoOJT’s from LPU Laguna is some kind of “maarte” and we met our STO Sir Joepet a very kind STO and I really like him. When we embark at the ship I feel a little bit nervous but not because of I’m of I’m afraid that the ship is going to sink while underway I’m afraid of what if I can’t do all
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Oxalic Acid Lab Aim: Use acid base titration to determine the number of water molecules in hydrated hydrochloric acid. Apparatus required: Oxalic acid solution 250 cm3 Weighing bottle Digital balance Beaker (250 cm3) Distilled Water Volumetric Flask 250cm3 Filter funnel Pipette Burette 50cm3 Retort Stand Beakers 100cm3 Standardized sodium hydroxide solution 0.1M Pipette filter Conical flasks 250cm3 Phenolphthalein Indicator Procedure 1) Rinse the burette with distilled
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9.1 Manufacture of Sulphuric Acid 1. State uses of sulphuric acid in daily life. - lead acid batteries in automobiles and for home use - extraction of elements from ores - manufacturing of fertilizers 2.The following shows an incomplete flow chart of the Contact process. a) b)Chemical equation A. B. C. D. 3. Briefly explain the sources of sulphuric dioxide gas in atmosphere. -Sulphur dioxide is produced mainly from the combustion of fossil fuels
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will probably not like what stands here‚ but‚ hey‚ they won’t notice if you apply it. The Literature Google a few books which cover your subject. Then go to the library and take the first one from the list. Don’t go in deep‚ just check if it’s really covering your subject. Then take the literature list from the book (usually in the last section) and get the books which stand there‚ but only take the ones which have your subject in the title (or as many as there are in the library). Don’t worry if
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Punished by Acid Several people from the third world become a victim of an acid attack. The victim’s life has changed tremendously‚ which is what the photographer shows with his world-known pictures. On Ebrahim Noroozi’s photoseries you see a mom named Somayeh and her daughter‚ Rana and what acid has done to their faces. Now they most stay by themselves and take care of themselves. It is hard for me to understand some people will walk up to you to pour acid on you. Somayeh looked like an average
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Pakistan has faced many problems ever since it came into existence. 63 years have been passed and the situation is getting worse day by day. Today Pakistan is facing all kinds of problems e.g. Inflation‚ Illiteracy‚ Unemployment‚ Corruption‚ Feudalism‚ Terrorism‚ Natural Disasters. Before the water goes over the head‚ it’s the time that the youth of Pakistan stands and plays their role in development of the country which we got after many sacrifices. The bud of nation’s future finds a fragrant
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Properties of Acids and Bases Diagram: A B C D E F Bromothymol Blue Universal Indicator Phenolphthalein Litmus Paper Analyze: 1) F‚ C‚ D‚ B‚ A‚ E 2) D is neutral because it turned to the colour of green when it came in contact with the indicator Bromothymol Blue. The acid or base is green between 6.0-7.6 pH. 3) Solution E is more alkaline (more basic) than solution A because when E came into contact with the indicator Bromothymol Blue it turned
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the group noticed that teabags are made from natural resources. Some kinds of teas are made out of a plant known as Camellis Sinensis. This plant is native to mainland China‚ but it is today cultivated across the world specially in tropical regions. Due to the chlorophylls and other pigments in the leaves‚ the extract commonly appears with a brown colour. B. Statement of the Problem The group aims to find out the potency of the extract of the leaves from the plant Camellis Sinensis as an ink.
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