Potassium permanganate

Handbook for Biology HL Year 1). It is the simplest form of carbohydrate. In this experiment, sulphuric acid, H2SO4 and potassium permanganate, KMnO4 is added into glucose with different concentration and the time taken for the purple pink colour of potassium permanganate solution to change to colourless is recorded. This is because glucose donates electrons to the permanganate

comparisons are seen, Potassium Permanganate increased after three minutes ahead and remained its value until the sixth minute and it remained constant, Potassium Dichromate increased at the sixth minute and retained its increase until the ninth minute and then remained constant, while Methylene blue remained constant all throughout in the 30 minutes span of time. Although the average rate of diffusion calculated in Table 2 show no difference in Potassium Permanganate and Potassium Dichromate, as seen

I then added 50 ml of distilled to the test tubes A1, B1, C1 and D1, then titrated them with the potassium permanganate solution (making sure to add 15 ml 3M sulfuric acid in each), then recorded the amount it took for them to turn pink. Data A. Standardization of KMnO4 solution: Sample g Na2C2O4 moles Na2C2O4 (x 10^-3) moles KMnO4 (x 10^-3) ml KMnO4

time taken for the potassium permanganate to decolourise from purple to colourless ? HYPOTHESIS The higher the glucose concentration the shorter the time taken for the potassium permanganate to decolourise from purple to colourless. VARIABLES VARIABLE | UNITS | RANGE | METHOD FOR CONTROL | INDEPENDENT VARIABLE-Concentration of glucose solution | % | 5%10%15%20%25%30% | Different glucose concentration are tested | DEPENDENT VARIABLE-The time taken for the potassium permanganate to decolourise from

In class, we performed a titration lab in order to determine the amount of potassium permanganate needed to titrate 1.0 g/mL of hydrogen peroxide. My team found that 42 drops of KMnO4 was needed to titrate the hydrogen peroxide solution. To find this, we first must find the amount of each reactant is in 1.0 g. To get 1 gram, 30 drops of H2O2 was needed while KMnO4 required 32 drops. In order to dilute the hydrogen peroxide, we added 2.02 g of H2O2 and 48.08 g of distilled water to get a 50.10 g solution

must be performed without adding catalase (enzyme) to the reaction mixture. 1. Accumulate 10 mL of 1.5% hydrogen peroxide (H2O2), two 50-mL glass beakers, 10 ml of 1M sulfuric acid (H2SO4), approximately 6 mL of 2% potassium permanganate (KMnO4) 1 mL of water (H2O), two appropriately labeled syringes (for contamination prevention), white paper, a pipette, aprons, goggles, and gloves. 2. Put on aprons, protective goggles, and latex gloves

understanding of the relationships between results present by the spectrophotometer. Food coloring was the subject of our first tests with the Spec 20 and our group choose the colors red and blue. Along with the food coloring we would also be running Potassium Permanganate through the machine. By sending light beams of different wavelengths through the solutions we were able to find the absorbance of each solution shown in Table 1 as well as the relationship

The objective of this procedure is to produce a sample of p-acetamidobenzoic acid from the oxidation of p-acetotoluidide with potassium permanganate. Procedure Part A- Preparation of p-Acetamidobenzoic Acid • In a 250 mL Erlenmeyer Flask, 5 g (0.02 mol) of magnesium sulfate crystals were mixed with 1.9 g (0.013 mol) of p-acetotoluidide in 125 mL of de-ionized water. The resulting solution was placed on a hot plate and was steadily boiled until the solution reached 85°C, or until the solution reached

Observing Enzyme Catalysis Purpose: • Procedure A (Testing Enzyme Activity)- How do different types of extreme temperatures affect enzyme activity? • Procedure B (Establishing a Baseline)- How much peroxide is needed to establish a baseline for a 1.5% solution? • Procedure C (Rate of Hydrogen Peroxide Spontaneous Decomposition)- How do oxygen and water affect the spontaneous decomposition of hydrogen peroxide? • Procedure D (Rate of Hydrogen Peroxide Decomposition by Enzyme Catalysis)-How does different

containing a known concentration of iron (II) ions, (Fe+). The concentration of oxalic acid solution will be determined by titration with the MnO4- solution that had been standardized first. The purpose of this lab is to standardize a solution of potassium permanganate by redox titration with a standard solution of