Throughout the colorimetry experiment many problems were encountered as well as other errors were found that could have possibly occurred. These problems or errors will impact my % accuracy and therefore the quality of my results. Ideally no problems would occur‚ and I would
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protein called thyroglobulin. This is a globular protein that has a functional role in metabolism. The protein is used by the thyroid gland to produce thyroid hormones; thyroxine (T4) is an example of one of the hormones created. Thyroxine is formed by iodine binding to tyrosine residues in thyroglobulin molecules‚ inside the follicle cell. (www.vivo.colostate.edu/hbooks/pathphys/endocrine/thyroid/chem.html) This hormone regulates growth and controls the rate of chemical reactions in the body. This
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years is 800mg and that of zinc is 10mg. Children of age 7 to 10 years need 100mg of iron‚ 250mg of magnesium and 120mg of iodine. Pregnant woman and lactating mother should include 400mg calcium and magnesium and 150mg magnesium. Woman in her pregnancy should consume 5mg zinc and 25mg iodine daily while breastfeeding mother should be provided with 10mg zinc and 50mg iodine. Comparing both cases‚ young children should eat more mineral containing food than pregnant woman. Both male and female
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Apparatus/Materials: * Unknown Solution X * NaOH * Iodine * Ethanol * Copper Sulphate * Benedict’s Solution * HCl * Cold Water * Syringe * Beakers * Bunsen burner * Tripod stand * Test tubes * Dropper Introduction: This Lab shows the detection of different food sources using different tests. Some of the food tests carried out was Benedict’s test‚ the test for non-reducing sugars‚ iodine test (test for starches)‚ emulsion test and the biuret
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How to Make Ink from Alugbati Things You’ll Need: • Fresh fruit of alugbati • Mortar and pestle • Strainer • Bowl • 3 tbsp. vinegar • 1 tbsp. salt • 2 tbsp. rubbing alcohol • 1 tbsp. iodine • Bottle Writing ink can be made from many natural sources‚ such as the fruit juice of the alugbati plant. Alugbati‚ known in the U.S. as Malabar spinach‚ is commonly grown for its soft‚ spinach-like leaves and shoots. Alugbati is of African and East Asian origin. The juice of the fruits was reportedly
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determined by analyzing the amount of iodine (I2) formed. Two chemical reactions are useful to determining the amount of iodine is produced. 1) I2(aq) + 2S2O32-(aq) 2I-(aq)+S4O62-(aq) 2) I2(aq) + starch Reaction 2 is used only to determine when the production of iodine is occurring by turning a clear colorless solution to a blue color. Without this reaction it would be very difficult to determine how much iodine is being produced‚ due to how quickly thiosulfate and iodine react. However this reaction
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Course: Principles of Biochemistry I & Biochemistry I Class: BS- Bioinformatics & BS-Biosciences Lab Instructor: Ms. Sadia Jabeen Lab Protocol #
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Borax‚ sodium phosphate‚ and ammonium chloride‚ are all ionic compounds. This can be shown based on the electronegativity difference between the atoms‚ and the fact that it involves metals and non metals. The rest of the solutes are covalent bonds. Iodine and paraffin are both non polar molecules. This can be shown by the eletronegativity difference‚ and the shapes the molecules make‚ which show that they are very balanced molecules. Sugar‚ citric acid‚ urea‚ and borax‚ are all polar bonds. This is
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The solubility test determined that the unknown liquid was either an alkane‚ an alkyl halide‚ a phenyl hydrocarbon‚ or a phenyl halide. The Beilstein test showed that there were no halides in the compound and the negative test from the Iodine Charge-Transfer Complex minimized our choices to be either an alkane or a phenyl hydrocarbon. The NMR and the IR spectrums confirm the presence of a phenyl group in the compound. To decide between 1‚2-dimethylbenzene and isopropylbenzene‚ the physical
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slip‚ and iodine (Note: iodine is toxic and will stain - handle with care). Procedure: 1. Get a glass slide and cover slip for yourself and make sure they are both thoroughly washed and dried. 2. Remove the single layer of epidermal cells from the inner (concave) side of the scale leaf (The thinner the better). 3. Place the single layer of onion cell epithelium on a glass slide. Make sure that you do not fold it over or wrinkle it. 4. Place a drop of iodine stain
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