EXPERIMENT 8 QUANTITATIVE DETERMINATION IODOMETRIC TITRATION OF COPPER CONCENTRATION IN AQUEOUS SOLUTION B Y RESULTS AND DISCUSSION Considered as moderately weak oxidizing agent‚ Iodine was used for the determination of strong reductants. Standard iodine solutions were found to have smaller electrode potentials as compared with the other oxidants‚ gaining them the advantage of imparting a degree of selectivity essential in the determination of strong reducing agents amid the presence
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Diffusion is the movement of particles from an area of higher concentration to an area of lower concentration. Because of the selective permeability of the membrane only water and other very small particles (iodine) can be diffused through simple diffusion. The solution out of the dialysis tubing had a higher distelled iodine concentration of solutes (iodine + H2O) than did the starch solution. So iodine move into the cell and react with starch molecules to formed starchiodine‚ the blue compound
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“The first essential for the child’s development is concentration. It lays the whole basis for his character and social behavior‚ he must find out how to concentrate‚ and for this he needs things to concentrate upon…” The Absorbent Mind‚ Chapter 22 Discuss how the Montessori Education helps to develop a child’s concentration and helps the child in his social development. In order to accomplish any task you need to be able to concentrate
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How does the concentration affect the rate of a reaction? 30/1/2012 By Alex Whenman Contents page 1. Introduction to my investigation 2. Background information on concentration 3. What experiment I will be conducting 4. Equipment I will be using 5. How I will be conducting the experiment 6. Heath and safety risk assessment 7. What I think will happen 8. How I will set up my experiment 9. Why I’m having my experiment set out like
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investigation how sugar solutions of different concentrations affect osmosis. Research Osmosis is the diffusion of water across a partially permeable membrane from a dilute solution to one of a higher concentration. If a solution has a low concentration then the amount of (in the case of my investigation) sugar‚ the solute‚ will be low and the solution will be weak. If there is high amount of sugar then the solution will be concentrated (have a high concentration). When two solutions are divided
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ruthless place for Jews in concentration camps. A large number of people who got put into concentration camps died either from being gassed or being worked to death. The bodies of those Jews would either be cremated or buried in mass graves‚ or not even buried at all. Hitler thought that the loss of WWI was the Jews fault‚ thus Hitler started the mass murder and Genocide of all Jewish people in Germany and Central Europe. There were approximately 20‚000 German concentration camps for WWII. There were
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This experiment shows the effects of changing the pH level has on Catalase. As predicted‚ the farther away the pH levels got from the optimum pH (7.2)‚ the lower the reaction rate. At a pH of 7.2‚ the foam of the reaction measures 6cm. At a ph of 3 it measures 2.5 cm‚ at a pH of 5 it measures 2.75 cm‚ at ph 9 it measures 2.3 and at 11cm it measures 2cm. pH measures the hydrogen ion concentration of a substrate. By changing the pH of the catalase‚ the enzyme was denatured. Denaturing is the result
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Construction of a Standard Curve for the Determination of Protein Concentration 09/13/12 PCB 3023-007 Results Figure1: Standard curve. This graph was constructed from the fixed amounts of Bovine Serum Albumin (BSA). Varying amounts of BSA at a concentration of .5µ/µl were mixed with the water and 1mL of coomassie dye. The equation y=0.0259x +0.0511 represents the best fit line for a data set taken from µg of protein equals two to ten µg. Optical density (OD) was surveyed using a Mach
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Auschwitz concentration camp. Furthermore‚ it was three different types of camps that were brought together: concentration camp‚ extermination‚ and labor camp (“Auschwitz was the largest camp”). All three camps played a major part in the Nazi’s “final solution” (Berenbaum). There were also subcamps part of Auschwitz. In just two years‚ 44 subcamps were built (1942 to 1944). Auschwitz also had different leaders. The first of the three leaders who controlled all of the Auschwitz concentration camps was
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essential in healing”‚ is what we have been told since the second we walked through the door of nursing school. What we do not learn in school is the amount of noise that actually exists in the hospital and the negative effects it has on our patients. Hospital noise has negative effects on our patients and on us‚ healthcare workers. “For the purpose of hospital noise‚ relevant measures of noise are related to sound levels. The relative loudness of sound is measured in decibels” (Choiniere‚ 2010). The
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