Elodea & Photosynthesis Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product. Introduction This lab has been created in order to find what extent does distance from a light source (5cm‚ 10cm‚ and 15cm) affect the rate of photosynthesis (measured in bubbles / 3 min) in Elodea water plants. Hypothesis:
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EDTA solution by dissolving 0.7-0.8g of Na2EDTA in 500 mL deionized water. Standardize the solution by using a 10 mL transfer pipet to add 10 mL of standardized calcium ion stock solution to a 250 mL Erlenmeyer flask and mixing it with 30 mL of deionized water. Add 3 mL of ammonia/ammonium chloride buffer (pH 10) to ensure that the calcium ions remain in the solution for accurate results. Add four drops of Eriochrome Black T indicator solution so that a color change can be visible during titration
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After reading Arthritis Research UK’s online pamphlet article on osteomalacia I feel very informed about this skeletal disease. This article had everything I needed to know. It told all about the disease‚ what it is‚ what causes it‚ who is at risk‚ research and more. I learned that osteomalacia means soft bones‚ and that is exactly what the disease is. The mineralization in the bones does not happen properly‚ causing bones to be made up of a collagen matrix with no mineralization covering. This causes
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3/16 Chem 322 Friday Partition Coefficient (Extraction) Lab for Benzoic Acid Reaction Mechanism: Purpose: The purpose of this particular lab was to demonstrate the difference in separation of Benzoic acid in water and Dichloromethane. Also the difference in separation of Benzoic acid in bicarbonate and Dichloromethane. By calculating the partition coefficient for each of these separations‚ it became clear the differences in the separation of the aqueous and organic layers. Observations
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Chemistry 101 Lab 7 Determination of % NaHCO3 in Alka Seltzer Tablets Names ____________________________and ___________________________ Date ____________________________ Objectives: (1) To determine the amount of NaHCO3 in Alka Seltzer tablets by observing the amount of CO2 produced from the acid-base reaction of HCO3- with acetic acid (in vinegar). (2) To study the concept of limiting reactant. Background: Alka Seltzer is an effervescent tablet that contains aspirin
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Calcium is essential to health yet it holds a hidden danger that brings us to our graves much quicker then we would like. Calcium is the most promoted nutrient by proponents of conventional‚ nutritional‚ and alternative medicine. This is a great and tragic mistake. They should have been promoting magnesium. Magnesium deficiency leads to an increase in myocardial levels of both sodium and calcium. This is a problem because Coronary Artery calcium is a predictor of near-term coronary heart disease
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Function What are the functions and sources of minerals? * There are two types of minerals‚ major minerals (macro minerals) and trace minerals (micro minerals). These are the essential minerals the body needs. * Macro minerals are * Calcium‚ functions for strong bones and teeth‚ sources are milk and green leafy vegetables. * Phosphorus‚ functions for acid balance‚ calcification of bones and teeth and energy of metabolism‚ sources are meat‚ poultry‚ fish‚ and milk. * Sodium‚ functions
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06.05 Rate and Collision Theory: Assessment Instructions Investigation of the Rate of a Reaction Background: The reaction you will be investigating is the reaction that occurs when an Alka-Seltzer tablet is placed into a given amount of water. Alka-Seltzer is an over-the-counter antacid and pain relief medication that is dissolved in water before it is ingested. Each tablet contains aspirin (acetylsalicylic acid)‚ citric acid‚ and sodium bicarbonate. As the tablet dissolves in water‚ the
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hard and not so soft. He has a flash-back and remembers baths he used to take and how soft the water was and how the baths he took out of his country were so hard. His general claimed that water that was too soft would cause problems so he would add calcium tablets to harden the water a little. He notices that his nub of a leg was bandaged and sanitized by a doctor. He hears a distinct engine sound after the nurse leaves the room and after a moment of thinking‚ he recalls them as a Junkers 88 which was
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Bone Diseases Med 201 November 12‚ 2013 The skeletal system can suffer from a few diseases one of the most common ones is Osteoporosis another one is Osteogenesis imperfecta. Osteoporosis affects in a progressive way that deteriorates bone mass. Making the bones weaker lacking density and causing to have the deficiency on the bones protein intake this can bring about to the one who has it more vulnerable to skeletal fractures. Osteogenesis imperfecta disturbs
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