Potassium permanganate Essays

Experiment 2: Preparation and Spectrophotometric Analysis of Copper(I) Iodide Abstract: This experiment aims to determine the concentration of “Purified CuI” sample. Crude CuI is obtained by reacting CuSO4.5H2O with KI and Na2S2O3 in de-ionized water. A series of decanting and centrifugation is carried out to extract the crude CuI. Crude CuI was later purified by dissolving it in hot KI solution. The solution was later transferred into de-ionized water and placed in an ice bath to allow for re-precipitation

To determine the amount of iron in the iron tablets I carried out a titration, however the titration I carried out in a school lab is different to how titrations are carried out in industry. For example in schools, titrations are carried out by hand using a burette and measurements carried out by us, whereas in industry there are machines that are automated to carry out titrations by themselves. In schools when the titration is carried out by hand it means that it will take longer, and be less accurate

Question One: A. When you eat a Hungry Jack’s Ultimate Double Whopper you consume about ⅓ of daily recommended intake in kilojoules and 4/7 of fat. Now imagine adding 4 pieces of chicken nuggets, large french fries, soft drink and a caramel sundae. That’s about a whole day’s worth of energy and nutrients squashed into one meal. In Isaac’s case, an aftermath of eating a horrible days intake in one meal, he is unable to burn enough kilojoules to counter the accumulation of fat and sugar which is stored

Hyperkalemia What is hyperkalemia? Hyperkalemia is the medical term for high serum potassium levels. This is often caused by kidney disease, high dietary potassium intake, increased cell breakdown, insulin insufficiency, and use of certain medications (eg, NSAIDs, beta-blockers). Rapid elevations in potassium or very high potassium levels may produce symptoms such as muscle weakness, paralysis, cardiac arrhythmias, and even death. Hyperkalemia that does not respond to medical therapy may require

sodium and potassium in the ICF and ECF According to Hale & Hovey, 2014, intracellular fluid is liquid that is found in the cells and it makes up around 60% of fluids present in the body. The fluids found outside the cells are extracellular fluids, and they make up the remaining percentage of body fluids. Sodium ions are the major cations present in the extracellular fluids while the potassium ion is the key cation in intracellular fluids. The concentration of the sodium and potassium cations contrast

Proteins play a very important role in the human body. Our everyday lives are dependent on proteins functioning correctly. The human body contains many many proteins that must all work together perfectly or problems can occur. There are several different types of proteins also in the human body, but the one being focused on will be the Calcium Pump protein, which is located in mainly muscle cells (Klabunde, 2010). The calcium pump works by pumping calcium out of the cell (Klabunde, 2010). It

Flame Tests of the Elements Lab 1. According to your observations, which metal ion is present in your unknown samples? Explain your rationale. According to the observations recorded, the metal ion Cesium is present in the “unknown samples”. Unknown sample number five produced a violet color when placed in the flame. Unknown sample number four produced an orange color when placed in the flame. Unknown sample number one produced a violet color when placed in the flame. This evidence supports the claim

Question Do sports drinks have more electrolytes than orange juice? Variables Independent Variable: Type of Liquid Dependent Variable: The conductance of the liquid Controlled Variables: the amount of liquid, multimeter and supplies, temperature of the liquid, room, and supplies Hypothesis If I measure the conductance of each liquid, then the sports drink will have the greatest current, and the greatest amount of electrolytes. Materials Digital Multimeter Three Alligator Clip Leads 5 feet (1

the purpose was to identify the cation in an unknown substance based on its characteristic color in a flame. Each color is represented by the amount of photons being released by the compound’s electrons. The first compound tested was Potassium Chloride. Potassium Chloride has a slightly pink and purple color due to the salt which produces it. The next substance examined was Sodium Chloride which appeared to be orange because sodium is placed within a blue flame. The flame raises the electron causing

Is Sodium Taking Over Your Health? Did you know that we are eating way too much sodium, in lots of foods that you wouldn’t be expecting it in? Have you ever looked at a label, specifically at the sodium label? Sodium also could be referred to as “The Silent Killer” because not many people know the causes of eating sodium.Sodium has a lot of side effects on eating to much of it, such as fluid retention in the body heart, high blood pressure, and dehydration. This research paper

exceed $1.5 billion a year” (Skerrett). And yet, sports drinks are made up of just water, salts, and sugary additives. These salts are known as electrolytes, and are the key characteristic of sports drinks. Examples of electrolytes include sodium and potassium, which can be found in sweat (Smolin). As athletes sweat they lose these electrolytes that play an important role in the body’s functions; they prevent muscle cramping and help nerves transmit impulses, along with also transporting fluids across

potential, which is essentially the flow of ions in and out of the neuron that differ from the normal flow, one must understand the relation of ions, especially sodium and potassium, with the neuron. Neurons are covered by membranes that regulate the inflow and outflow of chemicals, and certain chemicals, like sodium and potassium can only flow in and out via channels along the membrane. At rest, the membrane maintains a certain polarization between the inside and outside of the neuron, with the inside

temporarily changed (Berndt et al., 2011) Sodium ions are actively transported out of the axon, of the neuron, and potassium ions are actively transported in. This is performed by the sodium-potassium pump. This establishes a potential difference of charge between the inside and the outside of the axon (both molecules are positively charged but the movement of sodium ions is greater to that of potassium 3:2). The required resting potential

The main aim for the campaign ‘Adults and children over 11 should eat no more than 6g of salt a day’ was to inform and raise awareness of salt as a public health issue. The recommendation came about by The UK’s Committee on Medical aspects of Food and Nutrition Policy in 1994 and further validated in 2003 by the Scientific Advisory Committee on Nutrition. A number of research that have been carried out showed that a high salt consumption is the key reason as to why elevated blood pressure occurs

Chemical Reactions and Identifications of Unknowns Data Analysis Name: _Gloria Smith_________________________________________ Please answer the following questions with complete sentences unless a fill in the blank is given. Your answers must be typed. Do not plagiarize! Identification Tests: Flame tests are used to identify the __metal ions_ of a compound. Litmus paper is used to identify acids and bases. What general rule can be followed when using Litmus paper?

Science Fair Lab Report Sophia Tavakol 12/2/14 Ms. Davidson 6th period Rainbow Fire 12/5/14 I Abstract: What colors do different chemicals produce in a fire? Lucky for you, the purpose of this project was to see to see if the flames of a fire changes colors when chemicals are added to it. Since different types of atoms have different gaps between their energy levels, they make light of different colors when their electrons lose energy. The chemicals that combine to make these different

Living in a new place can be a tough thing. One of the hardest things in my life is to move along from my home country to study in Vietnam because I have to adapt myself to the new environment. After nearly two years of being in Vietnam I have found out that the unique of Vietnamese culture, friendly people, beautiful and attractive places make Vietnam charming and unique. But if you asked me what do I like most in Vietnam, undoubtedly my answer would be the food. Vietnamese food is well-known

The saponification (a reaction in making soap) process is a base (usually NaOH or KOH) hydrolysis of triglycerides to make salt (soap) and glycerol. Alkalis such as Sodium carbonate and Sodium hydroxide are used to neutralize the fatty acid and convert it to a salt. The molecules crystallize differently depending on the base used. NaOH produces a harder bar while KOH is used more frequently for liquid soaps. In some cases, Lithium soaps are formed and produce much harder soaps. There are four

Based in our experiment, we observed that an increase in the extracellular concentration of K+ increases the membrane potential of the crayfish muscle fibers thereby depolarizing these fibers. This process occurs because the ratio of K+ extracellular to intracellular was manipulated by adding KCl to the solution surrounding the muscle fibers. By increase the extracellular concentration, the K+ ions rushed inside the cell instead of their usual rushing outside. The movement of K+ ions inside the cell

metal component of the compound. The non-metal element that was in the compound did not mater. Compounds with Lithium (Li) were always red, compounds with Sodium (Na) were always yellow, compounds with Calcium (Ca) were always orange, Compounds with potassium (K) were always lilac, and compounds with Copper (Cu) were green. Going down the group there would be higher energy, which is shown through the visible color of the flame produced. It is shown in the graph how the energy of each wavelength in photon