Ceratopteris Fern Growth and Analysis: Observing Germination and Effects of Ammonium Nitrate Treatment I: Abstract Observing the effects of ammonium nitrate has on the germination days of C-Fern gametophytes by constructing an experiment with two spore-sown petri dishes‚ one control and one treatment – a normal nutrient-rich agar petri dish and an ammonium nitrate-containing petri dish respectively. The two petri dishes were each inoculated with three drops of spore suspension
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QUALITY CONTROL LABORATORY Mam Dawn Assay of HCL Aqueous Alkalimetry Direct titration 0.1N NaOH Methyl Red TS HCL + NaOH NaCl + H2O Assay of Diluted H3PO4 Aqueous Alkalimetry Direct titration 0.1N NaOH Thymolphthalein TS H3PO4 + 2NaOH Na2HPO4 + 2H2O Assay of H3BO3 Aqueous Alkalimetry Direct titration 0.1N NaOH Phenolphthalein TS H3BO3 H+ + BO2- + H2O
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have no chemicals added. If one teaspoon of ammonium chloride‚ calcium chloride‚ and sodium chloride are added to separate glasses of water‚ then ammonium chloride will keep the water cold the longest because it is most commonly used in brand name cold packs. In order to test the hypothesis‚ the scientists will label four cups to keep track of what chemical will go in each cup. One will just be plain water‚ while the next will be labeled ammonium chloride‚ calcium chloride‚ etc. Then the scientists
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certain substances were heated in a burner‚ and to note the appearance of the residue after heating. AIM: To observe the effects of heating different substances. MATERIALS: Hard glass test tubes Powered samples of Lead (II) nitrate Copper (II) sulphate Ammonium chloride Zinc sulphate Basic copper (II) carbonate‚ CuCO3. Cu(OH)2 Blue and red litmus and a splint METHOD: 1. About 1g of the solid was placed in a dry test tube and the test tube and
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In this experiment all of the precipitates result from the exchange of positive and negative ions between reacting solutions of two ionic compounds. Thus‚ in this example the precipitate must be either silver chloride‚ AgCl or sodium nitrate‚ NaNO3. Sodium nitrate dissolves readily in water and is therefore soluble. Thus we can conclude that silver chloride is the insoluble precipitate. We can represent the formation of this precipitate by a net ionic equation: Ag+ +NO3 ̄ +Na++Cl ̄→AgCl+NO3 ̄+Na+
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Analysis of an Unknown Mixture Performed: 2/13/14 Submitted: 3/3/14 Abstract: The purpose of this experiment was to separate and identify the two unknown compounds. The sample used was 105 and it contain 2-propanol and 2-heptanone. IR spectrums were taken of the contents of the second and sixth test tubes and showed the presence of an OH functional group and a small amount of ketone in test tube two and a large presence of ketone in test tube six. The average boiling points of the test tubes
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a shade of green‚ yellow‚ brown‚ or red. Soil Acidification When ammonia reaches the soil surface‚ it usually reacts with water in the soil and is converted into its ionic form‚ ammonium (NH4+) and absorbes to the soil. The ammonium in the soil eventually disassociates or is nitrified into nitrite (NO2-) or nitrate (NO3-) by nitrifying bacteria‚ releasing H+ ions into the soil (3‚ 4). If not taken up by biomass and converted to methane‚ the surplus H+ ions eventually lead to the formation of an
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Company‚ which was known with an ammonium nitrate explosion occurred on April 17‚ 2013. A massive explosion at a fertilizer storage and distribution facility. The first reports were given out as it was sustained severe losses in the blast. The explosion killed 15 people and injured more than 300‚ and others in buildings and homes were destroyed and damaged. It was certified by Texas Department of Insurance and State Fire Marshall’s Office investigators that ammonium nitrate was the main cause of the incident
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Experiment 2 Purpose: To determine energy lost by Calcium Chloride and gained by Ammonium Nitrate when dissolved in Water. Theory: Exothermic reactions are when net energy is lost in process of reaction. When solid calcium chloride (chemical formula CaCl₂) is placed in water‚ the calcium chloride dissolves and liberates heat in the process. Calcium chloride is one of the ingredients in instant "hot packs" sold in retail stores. Some concrete mixes incorporate calcium chloride to decrease drying
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+ Alkali Ions (Li+‚ Na+‚ K+‚ Rb+‚ Cs+‚ Fr+) = soluble Sodium fluoride‚ NaF‚ is soluble any anion + hydrogen ion [H+ (aq)] = soluble hydrogen chloride‚ HCl‚ is soluble any anion + ammonium ion (NH4) = soluble ammonium chloride‚ NH4Cl‚ is soluble nitrate NO3- + any cation = soluble potassium nitrate‚ KNO3‚ is soluble acetate (CH3COO-) + any cation (except Ag) = soluble sodium acetate‚ CH3COONa‚ is soluble Chloride (Cl-)‚ Bromide (Br-)‚ Iodide (I-) + Ag+‚ Pb2+‚ Hg2+‚ Cu+‚ Tl+
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