count, liver panel and serum glucose with electrolyte levels that may show signs of thyrotoxic crisis (Crawford & Harris, 2012, p. 47). Regular follow-up appointments should be scheduled and the nurse should teach the patient to avoid foods high in iodine (Crawford & Harris, 2012, p. 47). “Patients with Graves disease should notify their healthcare provider if they develop periorbital edema, eye irritation, blurred vision, and excessive tearing worsened by exposure to cold, wind, or bright…
Nutrient Testing Lab Purpose: Test different food items to see if certain nutrients are present. Hypothesis: if iodine, paper or certain solutions is present in the foods we test then it has one of the nutrients because it is detectable by a black, blue, yellow color when they are applied. Materials: flour, gelatin, milk, Iodine, brown bag, honey, cooking oil, potatoes, test tubes, peanut butter, eggs, paper towels, Chem-plate, hot water bath, Biuret's solution, Benedict's solution, chocolate…
was then heated to remove the brown NOx fume. This is necessary since NOx acts as an oxidizing agent and will oxidize I in the redox reaction to be observed. When all NOx fume is removed, H2SO4 was added and the solution was heated until white SO3 fumes appear. The addition of H2SO4 will drives off all nitrogen oxide gas that can interfere with the redox reactions. The SO3 vapor that is observed is an indication that all NOx has been driven off. The solution was cooled in ice bath and DI…
A.2. Procedures for proper storage of the classroom chemicals General Requirements for Classroom Chemical Storage Store all chemicals inside a locked cabinet with sturdy shelves. Label cabinet with warning label and contents. Secure cabinets and shelving to the wall or floor. Segregate chemical storage away from students in a ventilated, locked storeroom. Chemical Segregation Store acids in a labeled, locked, corrosion resistant cabinet. 1 M hydrochloric acid, HCl acid; storage code: White.…
a small drop of the reaction mixture with a clean eye dropper and added it to the first drop of iodine in the spotted white tile. 12. I noted the colour. 13. I discarded the mixture in the eye dropper and got a new drop from the test tube. I tested it with the second drop of iodine. It was important to always get a fresh drop of the mixture from the test tube since it cooled rapidly. 14. I repeated the test at 10 second intervals until I reached the endpoint of the reaction, the point at which…
experimental techniques to synthesize and decompose highly reactive, thus unstable, interhalogens that seemingly violate the octet rule. Synthesis reaction: KClO3 + I2 + 6HCl → KCl + 2ICl3 + 3H2O Decomposition reaction: I2Cl6 → 2ICl + 2Cl2 The halogens used within this experiment consisted of Iodine and Chlorine to produce an oxidizing reagent Iodine trichloride. Due to electron orbitals and their interactions…
that after adding 0.2 grams of KI, 1mL of 1M sulfuric acid, and 10.00 mL of vitamin C that the solution resulted in a dark orange color.2 Continuing titration, the solution turned into a pale yellow color. Addition of 5 drops of starch solution, reactions occurred changing the color of the solution from pale yellow to a blue. Some trials would change colors quicker compared to other trials. It could have been human error when it comes to the variations in the results. The overall average volume…
Dialysis Tubing Nicholas MacLean and Erin Girhiny Wednesday, October 19th, 2016 Mrs. Booth SBI 4U Purpose The movement of different molecules through dialysis tubing was observed. Materials Starch Glucose Water Dialysis Tubing Iodine String Scapula Scale Benedict 's Solution Test Tubes Test Tube Rack Hot Plate Procedure Lab was demonstrated by teacher. Observations Observation of Physical Properties After Time and Heat Initial Observations Observations After 24 hours…
The carbodimide chemistry reaction involves first the activation of the carboxyl group using 1-Ethyl-3-(3-dimethylaminopropyl)carbodiimide EDC and then a covalent reaction between free amino group and activated carboxyl group in PEG-EGFR and PF0-HNC respectively [42]. In brief, 10 mg of Methoxy-PEG-COOH and 5 times molar excess of the EDC was dissolved…
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…