should be as follows (and numbered accordingly): Title Page 1.0 Introduction 2.0 Synthesis of a Cobalt Complex 3.0 Percent Halide Analysis of Cobalt Complex 4.0 Preparation and Standardization of a 0.3 M Hydrochloric Acid solution 5.0 Percent Ammonia Analysis of Cobalt Complex 6.0 Preparation and Standardization of a 0.1 M Sodium Thiosulfate solution 7.0 Percent Cobalt Analysis of Cobalt Complex 8.0 Discussion and Conclusions Title Page Title (centered) Name Date CHEM 1212K Class
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Abstract The experiment was conducted‚ which metals manganese (Mn3+)‚ Cobalt (Co3+) and Copper Cu3+ was prepared and acac complexes where also obtained. Recrystallization was performed of which Mn(acac)3 ‚Co(acac)3 and Cu(acac)3 was obtained at percentage yield of 32%‚ 85.6% & 92% for each of acac’s. TLC was performed which results deduced unknown mixture both contained manganese and cobalt since it had the same Rf vaues. Experiment aims The aim of the experiment was to prepare metal
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conditions called? Urologist 2. What disease causes the kidneys to overcompensate by straining within the remaining nephrons? Chronic Renal Failure 3. What are most kidney stones composed of? calcium oxalate and calcium phosphate 4. What are three types of bladder stones? Struvite‚ calcium oxalate‚ urate‚ cystine‚ calcium phosphate‚ and silicate. 5. A constriction of the perputial orifice that does not allow for the foreskin to fold back over the glans is called? Phimosis 6. What is the term
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of producing the rings. • To investigate the effect of passing a D.C. current through the gel solution on the production of Liesegang rings. Main findings • The lead nitrate/potassium iodide and cobalt chloride/ammonium hydroxide reactions both formed bifurcations. The cobalt chloride/ammonium hydroxide reaction was then investigated under different conditions until discernable Liesegang rings had formed. • It was found that the rate of diffusion of ions was increased when a D
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(cystinosis) runs in families Calcium oxalate and calcium phosphate stones these two types are the most common‚ accounting for about 80% of cases. These kidney stones usually form whenfor any one of a number of reasonsthe concentration of calcium or other minerals in the urine becomes too high‚ which in turn leads to formation of crystals and with time small‚ hard masses. Possible causes include: · Inherited conditions that cause the kidney to retain calcium or oxalate. · A bowel condition that causes
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05_Chem_GRSW_Ch09.SE/TE 6/11/04 3:33 PM Page 79 Name ___________________________ 9 Date ___________________ Class __________________ CHEMICAL NAMES AND FORMULAS SECTION 9.1 NAMING IONS (pages 253–258) This section explains the use of the periodic table to determine the charge of an ion. It also defines polyatomic ion and gives the names and formulas for the most common polyatomic ions. Monatomic Ions (pages 253–256) 1. What are monatomic ions? Monatomic ions are ions consisting of only one
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crystal is heated‚ the attractions to the water are broken by the heat energy and the water escape from the crystal. After heating the salt crystal is called as anhydrous‚ which means without water. Many of the salt contain transition metals such as cobalt that is colorful (purple). Often the color of transition metal like cobalt’s color will change as a function of how many waters it is attracted to. Compounds containing water (H2O) of hydrated are written with water separate by a dot (.). This (.)
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Synthesis Procedure 1 -1.0 Introduction A Cobalt-Amine-Halide compound is synthesized from cobalt (II) chloride hexahydrate. An orange-tinted solid is produced and is considered to be unknown since the specific ligand amounts are unknown. By determining the percent composition of various elements and compounds in the unknown‚ its true identity can be predicted. Chloride‚ ammonia‚ and cobalt are three examples of percent compositions determined to help narrow the selection of possible unknowns
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prepare cobalt (III) acetylacetonate in the laboratory using cobalt (II) carbonate and acetylacetone at room temperature and pressure. Introduction The anion acetylacetone (acac) used in this practical functions as a ligand which forms a complex with the cobalt metal cation in an octahedral array where there is electrostatic bonds between the cobalt metal and both the oxygen’s of the acetylacetone to form a six membered ring1. Figure1: The 3-D molecular structure of cobalt (III)
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The case of my client‚ Patricia Stallings‚ is one with great controversy. We have opened her case again because of substantial evidence of her innocence. I believe that my client is innocent of the charges the court has wrongly fully accused her of. True‚ at the beginning of the case it seemed like a classic case of an abusive mother poisoning her own child; however with the birth of her 2nd child‚ David Jr.‚ important new evidence was discovered. He suffered from the same symptoms that Ryan had
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