this experiment is to separate sodium chloride/charcoal and sodium chloride/copper(II) chloride mixtures. Equipment requiredBalanceFilter funnel standFilter funnelBunsen‚ tripod and gauze matWatch glassGlass rodBeakers (two 100mL)Graduated cylinder (25 mL)Filter paper (Whatman No. 1—three 12.5 cm sheets)Sodium chloride/charcoal mixture (4 g)Sodium chloride/copper(II) chloride mixture (8 g)Ethanol (25 mL)Distilled waterBoiling chipProcedureA Separation of a Sodium Chloride and Charcoal Mixture#1
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ranges: * Sodium: Na+ 136- 145 mmol/L: sodium is the most abundant ECF ion (cation- positively charged ion)(90%) and is responsible for the osmotic balance of the ECF space by regulating osmotic forces and therefore regulating water balance (interstitial and intravascular fluid volume). Other function include: working with potassium and calcium to maintain neuromuscular irritability for conduction of nerve impulses‚ regulation of acid-base balance (through sodium bicarbonate and sodium phosphate)
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permeability of the plasma membrane of neuron to potassium and sodium ions causing an electrical impulse to be transmitted along the axon. When a stimulus depolarizes the membrane‚ a few of the voltage-gated sodium channels that are found in the neuronal plasma membrane open permitting sodium ions to pass through. Since there is much greater concentration of sodium ions outside the axon than inside‚ they diffuse in through the open sodium channels down their concentration gradient. This result in
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The purpose of this lab is to study some of the physical properties of two types of solids – ionic and molecular. The samples used are sodium chloride (ionic) and camphor (molecular). The physical properties studied are odour‚ hardness‚ melting point‚ solubility in water and solubility in 2-propanol. It is observed that some of the physical properties of sodium chloride are no odours‚ hard‚ a high melting point‚ soluble in water and insoluble in 2-propanol; some of the physical properties of camphor
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bitterness of phenylthiocarbamide‚ an organic compound used in genetics‚ and the ability and response of the tasting sodium benzoate paper‚ a food preservative. It is claimed that there is a direct relationship between the genes that control the tasting abilities of these two substances‚ primarily that if you had the ability to taste PTC‚ you would have a specific taste response for sodium benzoate‚ as well. After the experiment results were analyzed‚ it was determined that there is no direct correlation
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CHAPTER-1 INTRODUCTION 1 INTRODUCTION The organisation can be defined as “the planned coordination of the activities of a number of people for the achievement of some common‚ explicit purpose or goal‚ through division of labour and function and through a hierarchy of authority and responsibility.” Organisations are not just means used by groups of people to achieve some goals. They present different images like‚ Organisations as machines Organisations as living systems Organisations
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methods. Only then can be properly design parts‚ select the materials and manufacturing methods‚ specify toelerences‚ consider assembly procedures‚ specify the reliability of the machine and incorporate human aspects in the design.. | | STANDARDIZATION: | | Modern systems are increasingly becoming more and more complex. A large number of mechanical components ‚ controls‚ computers and communication subsystems are found interconnected in a complex system. Such a complex system can have many
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the decisions of Cirque du Soleil’s Macau operation and contribute to the growing literature on standardization and adaptation from the vantage point of Chinese culture and consumers. Key words: adaptation‚ standardization‚ Chinese tourists‚ consumer behavior 2 Cirque du Soleil’s Venture in Macau: Chinese Tourists’ Behavior within the StandardizationAdaptation Debate The debate on standardization and adaptation has been going on for nearly five decades‚ and the issue is even mor
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typical properties of bases. Materials: * * Goggles * Well plate * 2 strips of magnesium ribbon * Sodium hydrogen carbonate (baking soda)‚ NAHCO3 * Red litmus paper * Blue litmus paper * Conductivity tester * Beakers of: * Tap water * Dilute bromothymol blue indicator * Dilute hydrochloric acid * Dilute sodium hydroxide * Eye droppers * Unknown acids and bases * Phenolphthalein Procedure: 1. A data table was
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Effects of oligomycin‚ ouabain‚ p-Aminohippurate‚ sodium concentrations and potassium concentrations on active transport of the Malpighian tubules of Acheta domesticus Key Words: Malpighian tubules‚ Acheta domesticus‚ PAH‚ ouabain‚ oligomycin‚ Na+‚ K+ Silvia Kilic 100488712 BIOL 3040U CRN: 70041 Thursday‚ March 5th‚ 2015. Results The Malpighian tubules were incubated in the solutions for 15 minutes before being observed. The transport of CPR into the lumen was highest when there was no addition
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