Sodium From Wikipedia‚ the free encyclopedia This article is about the chemical element. For the PlayStation Home game‚ see Sodium (PlayStation Home). For the racehorse‚ seeSodium (horse). "Natrium" redirects here. For the town in West Virginia‚ see Natrium‚ West Virginia. Sodium 11Na
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Seung Soo (Jason) Lee 002213-065 Internal Assessment – Investigating the Relationship between Concentration of Sodium Chloride and the Rate of Reaction of Enzyme Amylase Research Question: How will changing the percentage of sodium chloride concentration affect the rate of reaction of enzyme amylase‚ measured using the absorbance of starch and iodine with a spectrophotometer. Introduction: Amylase is an enzyme that is involved in the human digestive process. Found in both the human pancreas
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and headed out to the garden ready to get rid of the slugs. As he walked over to the garden Johnny noticed the words sodium chloride on the side of his salt container. 1) Where has Johnny seen those words before? Johnny has seen the words sodium chloride before in his science class. Johnny thought back to science class and
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the slower rate of movement.1 2.3. The aim of this investigation is to evaluate the process of Osmosis and Diffusion on different concentrations of sodium chloride on a de-shelled chicken egg over a period of 24 hours. 2.4. My hypothesis relating to this investigation is that the de-shelled eggs in different sodium chloride solutions will absorb the water through the process of osmosis which will cause the eggs to increase both their weight and size. 2.5. The outcome
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Sodium: Sodium is essential to all living beings Basic functions: Sodium has 3 main functions: it helps in the absorption of glucose and some amino acids in the small intestine‚ it is required for normal muscle and nerve function‚ and it aids in water balance. Glucose generated by digestion of starch or lactose is absorbed in the small intestine only by cotransport with sodium‚ a fact that has exceptionally important implications in medicine. Glucose and galactose are taken into the enterocyte by
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Iodine: Function of Iodine: Iodine is a mineral found in food. This mineral is needed to make thyroid hormones. The hormones created are used to control the body’s metabolism and lots of other important functions. The thyroid hormones are also used for bone and brain development during pregnancy and infancy. This mineral is important for everyone‚ especially infants and women who are pregnant. The amount of Iodine needed for your daily intake recommended of the mineral depends on your age:
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In order to prepare the iodine solution titrant‚ exactly 50 mL of 0.01 M KIO3‚ exactly 20 mL of 10% KI solution‚ and exactly 25 mL of 0.3 M H2SO4 was transferred into a 100 mL volumetric flask using a volumetric pipette. The volumetric flask was then filled to the mark with distilled water. The flask was covered with Parafilm and inverted to mix. The next part of the experiment was to determine the Vitamin C in a solution of known concentration. Observations of the Vitamin C sample and the amount
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in water). Because it is known that organic compounds (such as benzoic acid) are very soluble in organic solvents‚ a hexane: ethanol mixture was used to dissolve the acid. Also‚ because it is known that sodium chloride dissolves in water‚ water was used to dissolve the NaCl. Along with separating the components of a heterogeneous mixture‚ the percent recovery of each substance was calculated using the formula: % recovery = (final mass)/(inital mass) x 100. The percent recovery is the amount of substance
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hydrogen fluoride molecules. KCl – potassium chloride is a metal halide salt. The bonding between potassium and chloride is an ionic bond. The potassium becomes a cation and the chloride an anion. The potassium end of the molecule becomes slightly positive and the other end slightly negative. Na – sodium contains metallic bonding. It has a high melting due to the bonding and has strong bonds. Each sodium atom is being touched by eight other sodium atoms and they all share electrons between the
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Purpose: The purpose of this experiment is to determine the number of moles of water molecules of crystallization of a sample of hydrated Barium Chloride. This can be calculated using Gravimetric Analysis and to indirectly determine the percent composition of a hydrate by taking advantage of its chemical properties. Introduction: Gravimetric procedures are analytical methods in which the results are determined from the masses of starting materials and products. These methods
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