10-21-14 Ms. Stephenson AP Biology Autotrophs vs. Heterotrophs Autotrophic organisms are called “producers” because they create their own food. The word “autotrophic” in Greek means “self-feeding”. Most autotrophs are green plants‚ algae‚ and some bacteria. A small number of bacteria‚ including the ancient Archaea group are capable of generating food from sulfur or other chemical reactions‚ but the majority of autotrophs rely on sunlight to carry out a process called photosynthesis
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Influence of light intensity on the Ceratophyllum ‘s photosynthetic rate Name:negar mir sharifi Student number:212656302 Lab section:D4
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Experiment 39 Oxidation – Reduction Titrations II : Analysis of Bleach A. Standardization of 0.05 M Na2S2O3 Solution KIO3 concentration 0.01 M Volume of KIO3 Trial #1 Trial #2 Final burette reading 15.01 mL 30.00 mL Initial burette reading 0.00 mL 15.01 mL Milliliters of KIO3 used 15.01 mL 14.99 mL Volume of Na2S2O3 Trial #1 Trial #2 Final burette reading 13.40 mL 25.78 mL Initial burette reading 0.03 mL 13.37 mL Milliliters of Na2S2O3 used
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behavior‚ constant inspiration and valuable knowledge imparted to me during the training period from 13th July to 27th August’2012. I am very thankful to Mr. Ashok Bansal (Senior Manager-Production of ammonia plant)‚ Mr. P.D. BATRA(Manager-Production of ammonia plant) and all officers of ammonia plant who helped me directly and indirectly in training at NFL‚ Panipat Thanking you all. Yours Faithfully Ajay Kumar Gulati 1210502 Chemical Engg. Department JMIT‚Radaur
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with Pb2+: Pb2+ (aq) + CrO42-(aq) → PbCrO4(s) (5) Yellow The other two insoluble chlorides‚ AgCl and Hg2Cl2‚ can be separated by adding aqueous ammonia. Silver chloride dissolves‚ forming the complex ion Ag (NH3)2+: AgCl(s) + 2 NH3 (aq) → Ag (NH3)2+(aq) + Cl-(aq) (6) Ammonia also reacts with Hg2Cl2 via a rather unusual oxidation-reduction reaction. The products include finely divided metallic mercury‚ which is black‚ and a compound of formula HgNH2Cl‚ which is white: Hg2Cl2(s)
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YOUR NAME: Erin Alston‚ Kennedy Stuart‚ Amber Lamb and Stephonya Williams EXPERIMENT TITLE: Oxidation: Cyclohexanone from Cyclohexanol by Hypochlorite Oxidation and Adipic Acid from Cyclohexanone DATE: 4/18/2014 INTRODUCTION: In experiment 4‚ alcohol is oxidized to a ketone with household bleach. The product is then isolated by steam distillation and is extracted into the distillate with ether. After the removal of ether‚ it leaves the product cyclohexanone. In experiment 6‚ cyclohexanone is
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:princess cucumber TOPIC : 3.8 & 8.2 : PHOTOSYNTHETIC PIGMENTS RESEARCH QUESTION INTRODUCTION The photosynthetic pigments are responsible for absorbing and trapping light energy the major pigments of photosynthesis are the chlorophylls. The two chlorophylls found in green plants are chlorophyll a and chlorophyll b. other pigments include carotenoids and phycobilins‚ sometimes referred to as accessory pigments. Carotenoids occur in all photosynthetic organisms‚ while phycobilins occur in the
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Ammonia Production from Natural Gas Problem Statement This senior design project involves transformation of natural gas into ammonia. Ammonia is an important chemical for fertilizer industry. About 85% of ammonia production is used for nitrogen fertilizers [1]. Urea alone consumes 40% of the total ammonia production. Other fertilizers that are made from ammonia are ammonium nitrate‚ ammonium sulfate and ammonium phosphate. Non-fertilizer applications include the production of aminies‚ nitriles
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Name: Date of experiment: 04/02/12 Date of report: 04/03/12 Title: Oxidation – Reduction Activity Series Purpose: To determine relative oxidizing and reducing strengths of a series of metals and ions. Oxidation and reduction reaction occur simultaneously side by side. A reduction reaction occurs only if an oxidation reaction occurs and vise-versa. Electrons are given in oxidation while in reduction electrons are gained. Oxidizing agent is a chemical substance which has a large tendency to
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Impacts of Ammonia Ammonia impacts both the environment and human health. * Environmental Impacts * Human Health Impacts Environmental Impacts When in gaseous form‚ ammonia has a short atmospheric lifetime of about 24 hours and usually deposits near its source . In particulate form ammonia can travel much further impacting a larger area. Both gaseous and particulate ammonia contribute to eutrophication of surface waters‚ soil acidification‚ fertilization of vegetation‚ changes in ecosystems
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