The result of a sodium/potassium electrolyte ratio of less than 25:1 along with increased levels of BUN‚ calcium and creatinine and a decrease in blood glucose and albumin concentrations may lead to a diagnosis of Addison’s disease. However‚ since electrolyte levels may not affect Addison’s disease an ACTH stimulation test provides a definitive diagnosis by
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Experiment #10 & #11 The Synthesis of Cobalt Oxalate Hydrate The Synthesis of a Nitrite Complex February 5‚ 2012 Chemistry 1211L - 146 - Spring 2012 Procedure The Synthesis of Cobalt Oxalate Hydrate Place 100 ml of distilled water in a 250-ml (or 400-ml) beaker. Add 1.26g of oxalic acid dihydrate (H2C2O4.2H2O) and 1 ml of concentrated ammonia. Stir the mixture until the solid has dissolved completely. Dissolve 2.34 g of cobalt chloride hexahydrate (CoCl2.6H2O) in 100 ml of water
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formula | NH3 | 6 | Nitric acid formula | HNO3 | 7 | Phosphoric acid formula | H3PO4 | 8 | Sodium phosphate formula | Na3PO4 | 9 | Calcium carbonate formula | CaCO3 | 10 | Ammonium sulfate formula | (NH4)2SO4 | 11 | Carbonic acid formula | H2CO3 | 12 | Sodium bicarbonate formula | NaHCO3 | 13 | Sodium hydroxide formula | NaOH | 14 | Calcium hydroxide formula | Ca(OH)2 | 15 | Ethanol formula | C2H5OH | 16 | Hydrobromic acid formula | HBr | 17 | Hydrosulfuric acid formula |
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Ferric Oxalate Trihydrate and The Determination of Oxalate Ion in Ferric Oxalate Trihydrate using Titrimetry Abstract: In this two-part lab‚ we will learn about coordination compounds and their uses with stoiciometry. We will also find out about how theoretical yield is calculated from a reaction we will create. We will also synthesize Potassium Ferric Oxalate Trihydrate (K_3 [〖Fe(C_2 O_4)〗_3]•3H_2 O) using a two step reaction. In the second part of this lab we will calculate how much Oxalate Ion
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Presence of oxalate ions in Guava Chemistry Investigatory Project Published by M.A.EBENEZER A chemistry investigatory project on the presence of oxalate ions in guava with all the required sample readings and observations‚ graphic customized and ready to print.( Though you will need to change the credentials.) See More INTRODUCTION Guavas are plants in the Myrtle family (Myrtaceae) genusPsidium (meaning "pomegranate" in Latin)‚ whichcontains about 100 species of tropical shrub
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Discussion Questions 1. Why do different metals have different characteristic flame test colours? The photons emitted during the test precisely match the quantum energy difference between the excited state and the ground state. For different elements the spacing between the ground state and the higher energy levels is different. So different elements have different flame test colours. 2. Most salts contain a metal and a non-metal. Look at the compounds we tested and determine whether it is
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enhances iron absorption by converting non-haem iron to haem iron and vitamin D enhances calcium absorption. Phytic acid found in cereals and grains and oxalates found in rhubarb and spinach may bind to calcium or iron making them insoluble and thus preventing their absorption. 3. Caffeine: May promote the excretion of vitamin and minerals. Also tannins found in caffeine can bind to and inhibit the absorption of calcium‚ iron and B group vitamins. 4. Alcohol: Consuming large amounts of alcohol causes inflammation
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x Normality of oxalate = ( x /100) = strength of oxalate in freshguava extract = normality x Eq. mass of oxalate ion= 1.32/100 x 44g/litre of diluted extract= 0.581 g L -1 2) For semi ripened guava (1 day old).Strength of oxalate in one day old guava extract= (1.37 /100) x 44g/litre of diluted extract= 0.603 g L -1 ) For ripened guavaStrength of oxalate in fresh guava extract= ( 1.39/100) x 44g/litre of diluted extract=0.612g L -1 (a) The normality of oxalate ions of; (i) Fresh
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rich source of oxalate ion and its content in the fruit varies during different stages. Oxalate ion are extracted from the fruit by holding pulp with dilute H2SO4. The Oxalate ions are estimated volumetrically by titrating the solution with standard KMnO4 solution. OBJECTIVE OF PROJECT In this project‚ we will learn the test the presence of oxalate ions in the guava fruit and how its amount varies during different stages of ripening. THEORY Oxalate ions are extracted
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Chapter 2 22. A student heats 0.5585 g of iron with 0.3550 g of sulfur. She reports that she obtains 0.8792 g of iron sulfide and recovers 0.0433 g of unreacted sulfur. Show by calculation whether or not her results obey the law of conservation of mass. Total mass initial = 0.5585 g + 0.3550 g = 0.9135 g Total mass final = 0.8792 g + 0.0433 g = 0.9225 g These two values should be equal by the law of conservation of mass. These results do not obey the law of conservation of mass. Possibly she
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