weight (36.4611g/mole) and diffused with dave=16.38 cm. A white ring of smoke formed closer to the heavier substance. The agar-water gel set-up used a petri-dish of agar-water gel with three wells on it. A drop of potassium permanganate (KMnO4) was put on one well‚ a drop of potassium dichromate (K2Cr2O7) was put on the other and a drop of methylene blue was put on the third well. Methylene blue which has the heaviest molecular weight of 374 g/mole occupied a small diameter of colored area which
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reactive than alkanes due to the presence of carbon-carbon bond. Objectives: * To know if potassium permanganate solution will show reactions with oil and fat samples. * To determine if the results of the performed experiment are saturated or unsaturated and alkane or alkene if the samples are mixed with potassium permanganate. Hypothesis: If the fats and oils will be added by potassium permanganate solution then we will know if it is an alkane or an alkene. Materials and Methods
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24681012 MODULE CODE: MCHE 321 EXPERIMENT NO: 2 TITTLE: KINETICS 2: TEMPERATURE OF THE REACTION: OXALIC ACID-POTASSSIUM PERMANGANATE REACTON Title: Temperature of the reaction: Oxalic Acid-Potassium Permanganate Reaction System Author: Miss Cleopatra Saul Abstract: The purpose of this experiment is to determine the rate of a chemical reaction (potassium permanganate‚ KMnO4‚ + oxalic acid‚ H2C2O4) as the concentrations are varied and to determine the rate law for the reaction. Since rates
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compared to HCl (dave HCl= 16.18 cm). Another experiment was performed with the use of petri dish containing an agar-water gel with three wells. One drop of each substance (potassium dichromate‚ potassium permanganate‚ and methylene blue) was placed on each respective well. In three-minute interval for 30 minutes‚ potassium permanganate‚ which has the lowest molecular weight (MW= 158 g/mol)‚ displayed the largest diameter (d= 17.5 mm) and diffused with the fastest rate (0.52 mm/min). On the other hand
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ampicillin base (C16H19N3O4S)? 27. Weight of potassium permanganate (g) Potassium permanganate is normally made as a concentrated solution which is then diluted prior to use. The concentrated solution is normally made as a 1 in 800 solution. You are asked to supply a patient with sufficient of this solution to allow them to make of use 25 mls of the further diluted solution (1 in 20) 3 times a day for 49 days. What quantity of Potassium permanganate will be contained in the volume of solution
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I. Objectives * Be able to prepare cyclohexene from the dehydration of cyclohexanol * Understand the mechanisms of the dehydration reaction (acid-catalyzed dehydration). * Know how to use the necessary equipment for this reaction‚ such as the fractioning column. * Obtain positive results in unsaturation tests for the presence of carbon-carbon double bond (cyclohexene). II. Background Cyclohexanol‚ the reagent of this experiment‚ is used in the production of nylon
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for unsaturation were performed adding drops of bromine in tetrachloride and potassium permanganate to four test tubes‚ two containing 5 drops of cyclohexanol(control)‚ and two containing cyclohexene(prepared product. 3 drops of bromine solution changed the product from red to clear within in 5 seconds. The control remained red after 5 drops of bromine were added. Likewise‚ 3 drops of potassium permanganate changed the product from purple to brown within 3 seconds. The control remained
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high concentration to low concentration‚ which the driving force for this type of movement is kinetic energy particles themselves. Which crystal (Methylene blue‚ solid or Potassium Permanganate KMnO4-purple) will move further than the other due to the driving force (kinetic energy)? My prediction is that Potassium Permanganate KMnO4- purple (molecular mass- 158.03 g/mol) will move further than Methylene blue‚ solid (molecular mass- 319.85 g/mol) since it weighs less. In osmosis is diffusion of
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is the wavelength at which the complex absorbs the most light; allowing the lowest amount to reach the sensor. The source of phosphate for making our standard curve was potassium hydrogen phosphate‚ and this wavelength allowed us to target and analyze only the phosphate-AVM complex while yielding the least impact from the potassium ions. As for the colas‚ they are made with so many ingredients that it was very important to have a good analytical wavelength. In addition to phosphate‚ there is caffeine
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Determination of the Enthalpy for Decomposition of Hydrogen Peroxide Objective: To construct a coffee cup calorimeter‚ measure its calorimeter constant‚ and determine the enthalpy of decomposition and formation of hydrogen peroxide. Background: This experiment is a classic thermodynamics lab. In it‚ we attempt to measure the enthalpy (H) of a chemical reaction. The main obstacle is that this is a quantity that cannot be measured directly. It instead is observed as heat from one substance is transferred
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