Experiment One Visible Spectrophotometric Analysis of Cobalt and Nickel Purpose Understand the function of the Spectronic 20 Spectrophotometer‚ the Perkin-Elmer recording UV-visible spectrophotometer and reveal the concentrations of nickel and cobalt in an unknown solution. Procedure In the Lab: Part B: Complex Formation Pipette 20mL aliquots into a 150mL beaker. Do the same with cobalt nitrate and nickel nitrate. Add between 0.70g and 0.90g of EDTA to each of the cobalt nitrate and nickel
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Sarah Pikey Government Portageville Site The Common Assessment The Iron Triangle There are two parts to the Iron Triangle. The Bureaucracy which is the agencies that are responsible for the regulation of those affected industries. The Interests Groups influence Congressional votes in their favor. The last party of the Triangle is the Congress they are responsible for funding Government Programs. I will explain how the Triangle works using the article about farmers wanting to trade with Cuba
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Problem: What methods could be used to extract materials from the given mixture that contains iron filings‚sand‚salt and small stones? Background There are things that must be understood before doing this lab. The first thing that must be understood is a mixture. A mixture has two or more pure substances‚ and the substances keep their chemical compositions (study.com).The next thing to apprehend is filteration. Filtration is a method used to separate a solid that isn’t dissolved in water. Another
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Title: Spectrophotometric analysis of a two-component mixture Aim: i. To prepare working standards of dichromate and permanganate ii. To measure the absorbance of the prepared working standards of dichromate and permanganate using a spectrophototometer iii. To determine the concentrations of permanganate in a mixture of unknown. Abstract: Working standards of dichromate and permanganate were prepared and absorbance for each found. This was done in order to plot
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Manns 03/13/13 A Comparison of Iron Man 1 and Iron Man 2 Several superhero movies have been made but none have been as amazing and awesome as Iron Man 2‚ including Iron Man. The expectations of the first one were too high which made it hard for them to meet up to it. Since Iron Man failed at meeting its expectations the first time around‚ the expectations weren’t so high which made it easier for Iron Man 2 to meet it and surpass it. Iron Man 2 is much better than Iron Man because the setting‚ characters
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VITAMINS‚ THEIR TYPES AND USES Vitamins are vital nutrients‚ indispensable to perform various tasks within the human body in order to promote optimal health and prevent various diseases. How do Vitamins work? Although required in minimal quantities these vitamins cannot be synthesised by the human body. Hence‚ they rely on easily available animal and plant sources for replenishment. These vitamins in conjunction with other nutrients help break down proteins‚ thereby stabilising metabolism‚ enabling
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1. Vitamins are good for everyone’s health. Discuss A vitamin is an organic compound required by an organism as a vital nutrient in limited amounts. An organic chemical compound is called a vitamin when it cannot be produced in sufficient quantities by an organism‚ and must be obtained from the diet. (Vitamin) Some of the most important vitamins and most commonly used which are good for everyone’s health are Vitamin A‚ Vitamin B1‚ Vitamin B2‚ Vitamin B6‚ Vitamin C‚ Vitamin E and Niacin (B3). Vitamin
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10/27/15 Vitamin D Deficiency Regarding Muscles Vitamin D deficiency has been tied to mainly bone pathologies. Recent research shows that the effects of Vitamin D span further than just affecting bones and particularly cause muscle weakness. Vitamin D is responsible for aiding in the absorption of other minerals‚ such as calcium. Calcium is a key ligand in muscle contractions‚ thus‚ Vitamin D indirectly can effect muscle contractions. An article published in Nutrition Reviews‚ Vitamin D: an overview
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Iron Maiden are an English heavy metal band from Leyton in east London‚ formed in 1975 by bassist and primary songwriter Steve Harris. Since their inception‚ the band’s discography has grown to include a collective total of thirty-six albums: fifteen studio albums; eleven live albums; four EPs; and six compilations. Pioneers of the New Wave of British Heavy Metal‚ Iron Maiden achieved success during the early 1980s. After several line-up changes‚ the band went on to release a series of platinum
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CHM 3120L ANALYTICAL CHEMISTRY I LABORATORY REPORT EXPERIMENT: SPECTROPHOTOMETRIC DETERMINATION OF IRON IN DRINKING WATER Name: Steven Adrien Section: 3 Date Experiment Completed: Wednesday‚ July 17‚ 2013 1. Complete the following table Fe(II) stock solution | mass‚ g | 0.1756 | volume‚ mL | 500.0 | MW(Fe(NH4)2(SO4)2 x 6H2O)‚ g/mol | 392.14 | AW(Fe)‚ g/mol | 55.85 | conc. Fe(II)‚ ppm | 50.0 | Use Equation Editor to show how you calculated the concentration of Fe(II)
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