METHODOLOGY After formulating the hypothesis that the molecular weight affects the rate of diffusion‚ three different kinds of substances --potassium permanganate (KMNO4)‚ potassium dichromate (K2Cr2O7) and methylene blue (C16H18N3SCl)‚ were used to test the validity of the hypothesis. Potassium permanganate is an inorganic chemical compound which is in violet liquid form; potassium dichromate is an orange inorganic chemical reagent and methylene blue is a chemical compound commonly used for staining
Premium Chemistry Potassium permanganate Oxygen
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
Premium Energy Concentration Agar plate
Damage of Beet Cell Membranes Caused by Different Temperatures Resulting in Betacyanin Leakage By: Trevor Sandum‚ Lab 2‚ March 9‚ 2013 Introduction: A red pigment called Betacyanin located in the vacuole of the beet cells is released when the membrane is damaged (Danyk‚ 2013). The membrane is necessary for sustainability of the cell’s life‚ it separates the cell from the outside environment‚ and is responsible for diffusion‚ exocytosis and endocytosis‚ and transport. It
Premium
The Effect of Solvent Exposure and Temperature on Beet Cell Membrane Integrity Introduction: • Cell membranes are vital to proper cellular function • Cell membranes consist of a lipid bilayer made up of phospholipids • Phospholipids are amphipathic molecules meaning they have a dual nature in that they show both hydrophilic (water-loving) and hydrophobic (water-fearing) properties • The amphipathic nature of phospholipids causes them to spontaneously form bilayers in water
Premium Cell membrane Solvent Ethanol
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
Premium Molecule Measurement Agar
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
Premium
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
Premium
Global and China MBR Membrane Industry 2013 Market Research Report 2013 Deep Research Report on Global and China MBR Membrane Industry was professional and depth research report on global and China MBR membrane industry. Firstly‚ the report has introduced MBR membrane basic information such as MBR membrane definition classification and manufacturing process product specifications. Browse Complete Report with TOC @ http://www.marketsnresearch.com/report/165260.php Then introduced global
Premium Supply and demand
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
Premium
environmentally friendly manner. Although fuel cells were invented one and a half centuries ago‚ only recently has it become feasible for them to compete with existing energy production systems. Among the various types of fuel cells‚ proton exchange membrane (PEM) fuel cells promise to become a viable power source for transportation as well as a distributed power source for residential uses because of their low operating temperatures and high power density. PEM fuel cells also promise to become an alternative
Premium Electrochemistry Hydrogen Electrolysis