Aqueous Solutions Reactions‚ Metathesis (Double Replacement) Reactions and Net Ionic Equations Terrance Shelton Introduction India’s cultural treasure and biggest tourist attraction is slowly losing its magnificent appeal due to decades of acid rain. The walls of the Taj Muhal are composed of a marble-like substance ( CaCO3) that corrodes and eventually crumbles when reacted with acid rain(H2SO4). Not only is the Taj Muhal suffering‚ but also other historic landmarks across the world. This is
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the strip‚ meaning no gelatinase utilization. The denitrification was tested and no result showed positive. Reduction of nitrate did not occur as no pink substance was observed after addition of 12 drops if sulfanilic acid solution. A red color did not appear during a dropwise addition of α-napthylamine solution and a pink color formed when zinc was added‚ meaning the nitrate was still present in the medium. The anaerobic plate showed growth‚ meaning that the organism was a NO3- electron acceptor
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1947‚ a day that probably began like many others‚ in Texas City‚ Texas until shortly before 8:00 in the morning. The hatch covers were removed from hold 4 of the French ship Grandcamp. This morning it was to be loaded with the remainder of it’s ammonium nitrate fertilizer. I’m not sure how much it had left to load but it already had 2‚300 tons on board at this time. The fertilizer was not the only thing that the Grandcamp had on board for this trip. At this point in time there weren’t all of the safety
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EXPERIMENT 4 TITLE Complex Formation and Precipitation. INTRODUCTION Precipitation is the formation of a solid in a solution as the result of either a chemical reaction‚ or supersaturating a solution with a salt resulting in solid material collecting on the bottom of the beaker (Housecroft & Constable‚ 2006). When the solution has been supersaturated by a compound and no more material can be supported by the solution‚ it considered as precipitate. Commonly‚ the solid will fall out of the
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more evident and familiar. Five preliminary tests were used to infer possible ions: two for cations‚ namely‚ precipitation reactions with hydroxide (OH-) and ammonia (NH3) respectively; and two for anions‚ namely‚ precipitation reactions with barium nitrate (Ba(NO3)2)‚ and non-precipitation reactions involving ferric chloride (FeCl3) and potassium permanganate (KMnO4) respectively. Confirmatory tests for all possible ions were also used to confirm the suspected ions from the preliminary tests. The experimentation
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complex ions readily. Apparatus and Materials: Measuring cylinder‚ suction filter‚ measuring cylinder‚ beaker‚ conical flask‚ petri dish‚ glass rod‚ copper(II)nitrate‚ water‚ ammonia‚ acetyl acetone Procedure: 1. 6g of Copper(II) nitrate (Cu
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Al | 3 | Sodium | Na | 1 | Potassium | K | 1 | Magnesium | Mg | 2 | Zinc | Zn | 2 | Copper | Cu | 2 | Silver | Ag | 1 | Lead | Pb | 2 | Chloride | Cl | -1 | Sulphate | SO4 | -2 | Hydroxide | OH | -1 | Carbonate | CO3 | -2 | Nitrate | NO3 | -2 | Phosphate | PO4 | -3 | Hydrogen Carbonate | HCO3 | -1 | Acids and Bases in the Laboratory Back to Top Some common acids that are found in laboratories are Hydrochloric acid (HCl)‚ Sulphuric acid (H2SO4) and Nitric
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Sulphur dioxide and environmental pollution 2) Ammonia and Its Salt-----------------------------------------------------(7-10) d. Uses of ammonia e. The properties of ammonia f. Manufacture of ammonia g. Preparation of ammonium fertilisers 3) Alloys------------------------------------------------------------------------(11-14) h. Arrangement of atom in metals i. What are alloys? j. The arrangement of atoms in alloys 4) Synthetic Polymer
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complete dehydration to give solid iron oxide. Methods and Materials: Needed in the experiment was; * Crucibles‚ Metal rings‚ Wire triangles‚ Burners‚ Funnels‚ Filter Paper‚ Beakers‚ Glass rod‚ Diluted ammonium hydroxide solution‚ Nitric acid solution‚ Silver nitrate solution‚ NH4NO3 solution‚ Distilled water. Below are some methods used in experiment. fig.1 fig.2 Experimental Procedure: This experiment was a multiple session lab. Obtain three crucibles and desiccator
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precipitates . Using these observation‚ identify an unknown union. Recording all the observations in Table 2. Data and Observations: Part I -Qualitative Analysis of Group 2 Elements Table 1 REAGENTS 0.1M SOLUTIONS OF GROUP 2 CATIONS (AS NITRATES) Mg2+ Ca2+ Sr2+ Ba2+ Unknown D 0.02M K2CrO4 no no Light ppt Light ppt(yellow) No 0.1M (NH4)2C2O4 no Heavy ppt(white) Heavy ppt(white) Light ppt(white) Heavy ppt(white) 0.1M Na2SO4 no no Light ppt Light ppt(white)
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