reflux the solution for 30 minutes by heating the solution until it boils‚ after this we allow the solution to cool down and then poured it into a125ml separatory funnel to drain and discard the lower spent acid layer. We washed the organic layer with a combination of 20ml of saturated sodium bicarbonate solution and 20ml of ether. Then we drained the lower aqueous layer and we kept the organic layer. We added 4 to 5 pellets of calcium chloride to the organic layer and allowed the solution to dry
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be focused primarily on financial issues and therefore‚ the director of Internal Audits should report to the CFO. Audit committee member: The committee member felt strongly that the Audit Committee as currently constituted is appropriate and no changes need to be made. Although none of the committee members are trained accountants they all have extensive industry experience‚ they have all been associated with Nano Circuits in various capacities for many years‚ and are well qualified to fulfill
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takes advantage of a protein’s amphoteric nature to determine its molecular weight and charge by running the sample through a gel matrix under the influence of an electrically charged field. A popular example of gel electrophoresis is Sodium dodecyl sulfate-polyacrylamide electrophoresis or SDS- PAGE which has been used in this experiment to supposedly determine albumin and casein’s molecular weights respectively. The system used in gel electrophoresis consists of 3 major parts: a stationary phase‚ a
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Proposing a Solution I live outside of a small town of 3‚000 people. The water system of our small town supplies drinking water to a population of 3‚000 to 5‚000. Our water system has been in place for 20 plus years and neglect has been rampant for almost the same period of time. Public water systems are governed by regulations and monitored by the State of Louisiana. The Town of Ferriday has been under state mandated “boil orders” more times that you could count. One of the more recent events
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Solution: i. Establishment of estimated growth rate in earnings and dividends. XYZ Company’s current EPS is $4.75. It was $3.90 a year ago. The company pays out 35% of its earnings as dividends‚ and the stock sells for $45. a. Calculate the past growth rate in earnings. b. Calculate the next expected dividend. Assume that the past growth rate will continue Answer: If payout ratio is constant‚ then dividend growth rate will be same as earnings growth rate. a) dividend growth rate over
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Lab Report Name: _____ Date: ______ Ionic Reactions List all of the cations used: Cobalt‚ Copper‚ Iron‚ Barium‚ Nickel List all of the anions used: Phosphate‚ Iodide‚ Sulfate‚ Chloride‚ Bicarbonate‚ Carbonate‚ Hydroxide Compare your results with the solubility rules and/or solubility table in your chemistry text. QUESTIONS: A - Do your results agree with your expectations
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Introduction We are going to do an experiment to see how surface area effects the rate of reaction when added to hydrochloric acid. I will add calcium carbonate (marble chips) to hydrochloric acid. When calcium carbonate is added to hydrochloric acid a reaction takes place. The solution fizzes and gives off the gas carbon dioxide. I will collect this gas in a gas syringe and will time how long it takes for the reaction to produce 100cm3 of carbon dioxide. CaCO3 +2HCL Co2 +CaCl2 +H2O CalciumHydrochloricCarbonCalciumWater
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Urad daal 2. Salt to taste 3. Oil to fry 4. 1 kg Dahi | | 5. Salt to taste 6. 2tsp Roasted cumin (jeera) powder 7. Red chilli powder to taste 8. Tamarid chutney | | | | Method: 1. Rinse and drain the overnight soaked beans. Add water to flour and make soft dough. 2. Leave for 1 hour after covering the dough with damp cloth. 3. Grind the beans along with chilli powder‚ salt and spices to prepare the stuffing. 4. Divide into 16 equal portions after mixing it well. Divide the dough
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rashes. It is a skin disease marked by small and itchy rashes. When the sweat accrues in certain parts of our body and results in the formation of small red bumps‚ which causes irritation and severe itching‚ then trying out prickly heat powders is a very possible solution. Prickly heat mostly affects back‚ underarms‚ near waist area‚ and chest. Newborns and infants are predominantly vulnerable to prickly heat because their sweat ducts are not mature. This makes it easier for the beads of moisture to be
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Department of Chemistry Chem 180 Lab 5: Ionic Reactions Submitted by Abstract: The purpose of this experiment is to work with aqueous solutions of ionic substances. Aqueous solutions are those solutions in which water is the solvent. When ionic substances are dissolved in water‚ the ions separate and become surrounded by water molecules. The focus of this experiment is on precipitates. The goal of this experiment is to study the nature of ionic reactions‚ write balanced equations‚ and to write
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