Isaac Solar Ice Maker Solar Icemaker Up to 1000 pounds of ice per day! Low cost and reliable source of ice for situations requiring 25 to 1000 pounds of ice per day (12-450kg). "Isaac" is the acronym for Intermittent Solar Ammonia Absorption Cycle. Ammonia absorption refrigeration technology was developed in the 19th century and is still used in industrial applications. Energy Concepts has adopted this technology to a machine which uses the sun as the only energy output. The particular advances
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DEPARTMENT OF PURE AND APPLIED CHEMISTRY College of Art and Sciences Visayas State University Chemistry 31a Biochemistry Laboratory Experiment No. 09 CHEMISTRY OF URINE Name: Artajo‚ Zeal Conbrio A. DVM-2 Date performed: Feb. 26‚ 2013 Group: 6 Date submitted: March 5‚ 2013 Objective: 1. Test urine for pH‚ specific gravity‚ and the presence of electrolytes and organic compounds. 2. Test
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A process for the preparation of racemic phenylethylamine which comprises contacting an optical antipode therefore‚ e.g.‚ L(-) or D(+)-1-phenylethylamine with sodium amide or sodium hydride. Claim: What is claimed is: 1. A process for preparing racemic 1-phenylethylamine which comprises contacting L(-)-1-phenylethylamine or D(+)-1-phenylethylamine with 0.01 to 1 weight percent‚ based on theamount of said phenylethylamine‚ of sodium amide or sodium hydride at a temperature of 70.degree. to 150
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to the others. Follow the below procedure. TT #2: Add 1 ml of .1 M FeCl3 solution. TT #3: Add 1 ml of .1 M KSCN solution. TT #4: Add .1 M AgNO3 solution by drops until a change occurs Part 3: Prepare a dilute ammonia solution (NH3 + H2O NH4+ + OH-) by adding 4 drops of ammonia to 100 ml of water. Add 3 drops of phenolphthalein (detects OH-). Pour 5 ml of the solution into each of three test tubes and follow the below procedure. TT#1: Add several small
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acid-base reactions are so important is that many of the things you come into contact with on a daily basis are either acids or bases. Most fruits are acids‚ as are carbonated beverages‚ tea‚ and battery acid. Common household bases include baking soda‚ ammonia‚ soap‚ and antacids. What are acids and bases? There are not one but three common definitions used to describe acids and bases: 1. Arrhenius acids and bases 2. Brønsted-Lowry acids and bases 3. Lewis acids and bases. These three definitions
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Manufacture of Ammonia and its salts 1. State uses of ammonia in daily life. -To make explosive chemicals such as TNT -In the rubber industry‚ ammonia is used to prevent the cogalation of latef 2. State physical properties of ammonia. -Ammonia‚(NH₃) is a colourless and pinyentgas -It is less dense than air -It is highly soluble in water. NH₃ + H₂O NH₄OH 3.The diagram below show ]s a flow chart to prepare nitric acid and fertiliser Z from ammonia. Ammonia Ammonia Fertiliser
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Preservative) * 18 Panadol 6 tablets “Panadol Rapid – Soluble” (Effervescent Tablets with Sodium Bicarbonate for accelerated digestion) * 1.8L distilled water (neutral solvent) * 1.8L bottled lemon juice (acidic solvent) * 1.35L cloudy ammonia (basic solvent) * 0.45L distilled water (basic solvent dilution) * 2 small saucepans * Stove * Permanent marker Method Neutral Solvent 1. Wipe thermometer with ethyl alcohol swab to sterilise 2. Boil 600mL distilled water
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NaOH solution to the solution of the sample and look for a precipitate. 5.) Add excess NaOH solution and look for the precipitate re-dissolving. 6.) If no precipitate is formed‚ heat the test tube gently over a Bunsen’s flame and test for Ammonia by using a universal pH paper 7.) Record relevant observations. 8.) If the precipitate is white in color and is soluble in excess NaOH then carry out procedure 9. 9.) Repeat procedures 3 to 7 with NH4OH and record relevant observations
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Part 1 A） Chemist 1: New product development This career role involves the development of new paints to meet changing market needs. The chemist would be working as a member of a team developing and testing new colloidal paints to suit specific purposes. This might include weatherproof paints‚ which retain their colour and are resistant to solar radiation‚ or indoor paints that can be easily and repeatedly washed. Chemist 2: Environmental monitoring This career role as a public servant could
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Introduction The primary objective of this lab is to be able to determine the specific heat of a reaction by using a calorimeter. A calorimeter is a device used to determine the specific heat of chemical reaction or a physical change. The specific heat a reactions is used to refer to the amount of heat that is lost or gained when one gram of a particular substance increases or decreases by one degree Celsius. When a chemical reaction occurs in an open container most of the energy gained or lost
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