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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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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prepare a standard solution of ammonium iron sulphate and use this solution to standardise a solution of potassium permanganate. Potassium permanganate (KMnO 4 ) is a powerful oxidizing agent and is a deep purple colour. It cannot be obtained in sufficiently pure form to weigh it out accurately and make up a standard solution directly. We must titrate an approximate solution of potassium permanganate (0.02 M) against a primary standard solution‚ ammonium iron sulphate (0.1 M). Prepare the ammonium iron
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various aspects of kinetics of three reactions. A. Reaction between lead nitrate (PbNO3) and potassium chromate (K2CrO4) solutions B. Reaction between potassium permanganate (KMnO4) and oxalate ion (C2O42-) C. Iodine clock reaction A. REACTION BETWEEN LEAD NITRATE AND POTASSIUM CHROMATE SOLUTIONS Lead nitrate reacts with potassium chromate to form yellow lead chromate precipitate and aqueous potassium nitrate. The formation of a yellow precipitate indicates the completion of the reaction. The
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OBJECTIVES: To determine the maximum wavelength of potassium permanganate. To plot the calibration curve of potassium permanganate. To determine the concentration of an unknown solution of potassium permanganate. INTRODUCTION: UV Spectrophotometer has 4 main components which is the UV light source‚ the sample‚ detector and the processor/recorder. Spectrophotometry is a technique that uses the absorbance of light by an analyte (the substance to be analyzed) at a certain wavelength to determine
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between potassium permanganate with oxalic acid. We used 2cm3 of 0.02M potassium permanganate and 4cm3 of 1M sulphuric acid into a test tube. In another test tube‚ we placed 2cm3 of oxalic acid. We placed the test tubes in a water bath at 40‚ 45‚ 50‚ 55 and 60oC respectively. When the solutions have attained these temperatures pour the oxalic acid into the acidified permanganate solution and recorded the time taken for the permanganate to decolorize. At 400C ‚ the time taken for the permanganate to decolorize
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copper nitrate solution. 3. Observe what happens when copper metal is placed in zinc nitrate solution. 4. Observe whether 0.1 M iron (III) chloride solution or iron (II) sulfate decolorize when added to 0.1 M potassium permanganate. 5. Add drops of potassium permanganate to the solution that changed color in the previous step. Record how many drops were added until the purple color of the ion no longer changed. 6. Observe color changes when sodium iodide solution is reacted with
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