Iodine-131

Title: Stoichiometry to Calculate Reaction of Zinc and Iodine and Law of Conservation of Mass Authors: Sang Nguyen and Sami Biro Introduction II. Materials and Methods A. Materials Zinc (Zn), iodine (I2), acetone (C3H6O), acetic acid (C2H4O2) and zinc iodide (ZnI2) were used to conduct this experiment in order to confirm the validity of the law of conservation of mass as well as to use Stoichiometry to calculate the reaction between zinc and iodine. There are some precautions that one must…

under their supervision, treating it with natural supplements and lifestyle changes. What is the Thyroid? The thyroid is a small-butterfly shaped gland located in front of the neck, below Adam’s apple. The function of the thyroid is to convert iodine from food (with the help of tyrosine, an amino acid) into hormones called thyroxine or T4 and triiodothyronine or T3. A healthy thyroid gland produces 80% T4 hormones…

After using a search engine, I researched the differences between Hypothyroidism and Hyperthyroidism. Although, many people might confuse the terms due to their similarities in their spellings. There are many differences between them but the main difference, in my opinion, is the change in the production of the gland activity, Underactive vs Overactive Thyroid glands respectively. Hypothyroidism is an underactive thyroid gland. This means that the thyroid gland doesn’t produce enough thyroid…

Hypertension is a leading cause of cardiovascular disease. According to an article in the American Journal of Hypertension (2010), people diagnosed with hypertension should restrict their salt intake (p. 1095). However, according to Web MD we need iodine, found in table salt, for the health of our thyroid (2005-2015). As you can see, choosing the right diet can be confusing. We can also assume that diet does play a part in many of our illnesses and our overall wellbeing. So, what’s the big…

Biochemical tests are used to detect the presence of different kinds of organic molecules, carbohydrates, lipids, nucleic acids, and proteins. These tests include the Benedict’s Test, Iodine Test, Sudan III Stain Test, Biuret Test and many others. With these tests, the nutrients from an unknown solutions can be identified in the solution. The Benedict’s test is used for identifying reducing sugars, which are simple sugars that include monosaccharides and some disaccharides. The Benedict’s…

The difference between the variable in the control and the experimental is the variable that is being tested. In this experiment the Variables Control Group Experimental Group Iodine Time Amount of Iodine Starch Solution Starch solution Temperature of water Temperature of water Dialysis tubing Dialysis tubing Beaker Beaker Water water Time Table 1: This is the table showing the experimental design. The following is a set of step-by-step…

Determining Percent Composition of Unknown Copper Ore Sample Iodine-thiosulfate Method: An Analytical Method The objective of this experiment is to eliminate all interfering species from a sample of unknown copper ore in order to later determine pure copper content. Copper ore can be found in a mineral that contains pure copper and other species that is mined and can later have copper extracted from them (Taher, 1999). To eliminate all interfering species, such as Iron, Arsenic, and…

“Empty your mind, be formless, shapeless--like water. Now you put water in a cup, it becomes the cup; you put water into a bottle it becomes the bottle; you put it in a teapot it becomes the teapot. Water can flow or it can crash.Be water, my friend.”-Bruce Lee. Water can obtain many ways, but the most dominated ways are tap, water that is usually received from a person's home that originates from a water plant or well on the personal property. Or bottled water, water that is purchased from a…

CHML 1046 General Chemistry 2 Laboratory Experiment “The Rate Law of an Iodine Clock Reaction” Objectives: To apply method of initial rates for investigation of influence of concentrations of reactants on the rate of the reaction. Determine the rate law of a particular reaction experimentally. Observe the effect of catalyst on the reaction rate. Examine the influence of temperature on the rate of this reaction. Calculate activation energy for the reaction from rate constants at two…

Introduction As humans are unable to produce Vitamin C (ascorbic acid) but still require it for proper body function, humans obtain Vitamin C from external sources.1 Historically, citrus fruits, which have a comparatively higher amount of Vitamin C, were eaten to achieve proper amounts of Vitamin C or prevent scurvy. During the age of long sea voyages, where fresh food was scarce, scurvy was prevalent and extremely detrimental .2 However, fruit was not always available or economically feasible.…