Aim: To determine the water of crystallization in washing soda crystals (Na2CO3.xH2O) Research Question: What is the percentage composition and the amount (in moles) of water in the given ionic hydrate? (Na2CO3.xH2O) Background Information: Sodium Carbonate also known as Washing Soda (Na2CO3.xH2O) is a sodium salt of carbonic acid. Sodium carbonate is domestically well known for its everyday use as a water softener. It is also used to remove grease‚ oil and wine stains. It can be extracted from
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about determining the quantitative amount of sulphate inside barium sulphate‚ BaSO₄‚ using the method of gravimetric analysis. This quantitative determination is done by the addition of a dilute solution of barium chloride slowly to a hot unknown sulfate solution slightly acidified by concentrated hydrochloric acid‚ HCl. The white precipitate of barium sulphate is filtered off‚ washed with water‚ oven-dried‚ and weighed as barium sulphate. The quantitative amount of sulphate is deduced from mathematical
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that are in the hydrate. Copper(II) sulfate pentahydrate‚ or CuSO4 * 5H2O‚ is a ratio of one copper sulfate to five (penta) molecules of water. Copper sulfate pentahydrate is a blue hydrate while anhydrous copper sulfate (CuSO4) is white. To get anhydrous copper sulfate‚ copper sulfate pentahydrate must go through an endothermic reaction and have all of its water molecules evaporated. It then becomes the white‚ flaky‚ and chalky material anhydrous copper sulfate. Adding
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Lab: STOICHIOMETRY The reaction of Iron with Copper(II) Sulfate Purpose: In this experiment we will use stoichiometric principles to deduce the appropriate equation for the reaction between metallic iron and a solution of copper (II) sulfate. This reaction produces metallic copper‚ which is seen precipitating as a finely divided red power. Materials: Flask beaker Copper solution Balance Hot plate •150 ml beaker •1 gram of iron power
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Zinc Tris-thiourea Sulfate (ZTS) is a Semi Organic Nonlinear Optical (NLO) material which finds applications in the area of laser technology‚ optical communication‚ data storage technology‚ and optical computing etc. The author has successfully grown ZTS crystal by gel method. Gel technique has been adopted at ambient temperature to attain better result. The grown crystals were transparent and colourless. The crystal size has been obtained the range about 5mm X 3mm X 2mm. Thermal study of ZTS crystal
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The Leading Causes of Infant Deaths "Infant mortality (as defined by Wikipedia Encyclopedia) is the death of infants in the first year of life." Infant mortality deaths can be caused by several different factors including health of the mother‚ health practices‚ and living conditions of the mother. "In the United States‚ about two-thirds of infant deaths occur in the first month after birth and are due mostly to health problems of the infant or the pregnancy such as preterm delivery or birth defects"(www
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Abstract: The persistence of Propaquizafop was studied in two different soils (Canning-saline soil and Jhargram-red & lateritic soil) under controlled laboratory simulated conditions. Propaquizafop was fortified at 2 and 4 µg g-1 and samples were drawn‚ extracted and analyzed upto 90 days at regular intervals. Dissipation of Propaquizafop was followed first order kinetics irrespective of any treatment and soil type. Calculated half-life values were found to be in the range of 25.29-27.63 days irrespective
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Journal Article Review 1/2 The second article that I chose for this week was relating to the most common population that is seen in the pediatric developmental clinic: premature infants. The article begins with an introduction informing the reader of some statistical information relating to premature births and the costs of hospital stays. In the introduction‚ the problem is presented‚ informing the reader that there is a need for interventions that are evidenced-based‚ to help reduce hospital
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Premature babies and some of the complications Premature Babies and some of the complications There have been many medical advances in both prevention and intervention that will hopefully lead to lower premature birth rates. Premature births affect 500‚000babies-which is 1 of every 9 infants born in the United States. Worldwide‚ more than 15 million babies are born to soon each year. Prematurity exponentially increases a variety of complications such as breathing problems. Teen pregnancy
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“Bath Salts”: A New Drug Epidemic—A Case Report Article Review #2 This article dealt with the aspects of the new and rising epidemic to which is referred as “bath salts”‚ or methylenedioxypyrovalerone (MDPV). The author shows an example of the effects of the drug by using set person‚ Mr. S‚ to show what happens to the average bath salt user. Mr. S is a fifty year old man who has had a prior substance abuse to methamphetamines and a history of violence resulting in incarcerations. After extensive
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