Title: Diffusion Rate of Methylene Blue on Agar Plates at Different Temperatures Abstract: Diffusion is the movement of particles from an area of high concentration to an area of low concentration wherein substances are independent‚ rapid and in random motion which frequently collide with each other in the sides of the container. This study aimed to assess the influence of temperature on the diffusion rate of methylene blue on agar plates. To determine the relationship between the two variables
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solutes move via passive diffusion through the plasma membrane. Diffusion is a process where molecules move from an area of high concentration to an area of low concentration. How quickly diffusion occurs is dependent on several factors‚ such as temperature‚ particle size‚ and the concentration difference on either side of the membrane. Testing the hypothesis relating to the effect of molecular weight to the diffusion rate‚ agar plate set-up was used to observe the diffusion of different substances
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the aim and background information 2.1. Diffusion is the spontaneous kinetic movement by which molecules move from an area of a high concentration to an area of low concentration. Diffusion continues until it reaches equilibrium. Osmosis is similar to Diffusion but it’s the process in which water moves across a semi-permeable membrane and goes to the higher concentration of solute.1 2.2. Important factors to Osmosis and Diffusion include Temperature‚ Concentration and Surface area
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results. My hypothesis was ‘as the surface-area-to-volume ratio decreases the diffusion rate increases’ my results support my hypothesis‚ because in my table of results when the surface area to volume ratio is at 14 the diffusion time is 38 seconds‚ then the ratio goes down to 9‚ and the time increases to 90 seconds. My graph also supports my hypothesis‚ because the curve on my graph slopes down which shows as the diffusion time increases the ratio decreases. One of my results that could possibly have
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INSTITUTE D’ÉTUDES POLITIQUES DE PARIS – CAMPUS DE POITIERS INTRODUCTION À LA SCIENCE POLITIQUE – CONFÉRENCE DE M. FRÉDÉRIC LOUAULT FICHE DE LECTURE: The Retreat of the State: The Diffusion of Power in the World Economy‚ de Susan Strange Luis Felipe LOPES Le dernier 28 Novembre‚ l’organisation Wikileaks a publié‚ en partenariat avec cinq grands véhicules d’information‚ environ 250 mil télégrammes de la diplomatie américaine considérés ultrasecrets. Le Wikileaks Cablegate n’est pas
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UNIVERSITA’ DEGLI STUDI DI TORINO FACOLTA’ DI ECONOMIA ZIENDALE LAUREA SPECIALISTICA IN ECONOMIA E DIREZIONE DELLE IMPRESE e-health e caso telecom Corso di E- Government Realizzato da: Iannuzzelli Antonio 336528 Iuliano Ivan 339922 Docente: Massimo Pollifroni Anno Accademico 2007-2008 1 e-health 7 1.1 Concetti fondamentali e definizioni 7 1.2 E-health e telemedicina: nomi diversi per concetti simili 8 2 il contesto di riferimento
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solution of the diffusion equation describing the flow of radon through soil ´ ´ Svetislav Savovic a‚b‚n‚ Alexandar Djordjevich a‚ Peter W. Tse a‚ Dragoslav Nikezic b a b City University of Hong Kong‚ 83 Tat Chee Avenue‚ Kowloon‚ Hong Kong‚ China ´ Faculty of Science‚ R. Domanovica 12‚ 34000 Kragujevac‚ Serbia a r t i c l e in fo abstract Article history: Received 13 April 2010 Received in revised form 13 September 2010 Accepted 14 September 2010 Radon diffusion through soil
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COLLECTION AND PROCESSING CONCLUSION AND EVALUATION RELATIONSHIP BETWEEN SURFACE AREA AND THE VOLUME OF A CELL‚ HOW IT AFFECTS THE RATE OF DIFFUSION Nazirul Ibrahim 04.10.2011 DATA COLLECTION AND PROCESSING We have determined the following variables: * dV- the time for the color indicator phenolphthalein to reach the center of the cube (diffusion) * iV- the size of the cube * cV- the amount of Sodium Hydroxide the perfect dimensions of the cube‚ how the cube is fully submerged
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METROPOLITAN AREAS‚ ENTREPRENEURIAL COMMUNITIES AND THE DIFFUSION OF VENTURE CAPITAL INVESTMENTS: SOME DESCRIPTIVE STATISTICS 1. Introduction The development of metropolitan areas is likely to depend‚ among other things‚ on the development of their entrepreneurial communities. However‚ our understanding of entrepreneurial communities worldwide is limited. In the following chapter‚ we begin to fill this gap by providing data on the development of entrepreneurial communities around the
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The Effect of Molecular Weight on the Rate of Diffusion of Potassium permanganate (KMNO4)‚ Potassium dichromate (K2Cr2O7) and Methylene blue ¹ ABSTRACT The effect of molecular weight on the rate of diffusion was determined using the Agar-water Gel Test. One drop of potassium permanganate (KMNO4)‚ potassium dichromate (K2Cr2O7) and methylene blue were used. Each substance has a respective molecular weight of 158 g/mol‚ 294g/mol and 374 g/mol. The diameters (in millimeter) were measured
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