Chemistry lab on saturated and unsaturated fats Essay

This experiment has also been trialled using KMnO4(aq) (0.0005 mol dm ) as the indicator. This turns from purple to intensityless while unsaturation is still present. The procedure is the same as for bromine urine, but portions of the chiliad permanganate are added with swirling until the mixture fails to mystify a colourless solution. The mixture requires more and more swirling as the sum of potassium permanganate increases. Warming risques in the Volasil using a beaker of hot water helps the fat dissolve and also speeds up the reaction.see morechemistry matriculationThis experiment should be done in a fume-cupboard with ready fill burettes.Background theorySaturation and unsaturation.Classic chemistry experiments21 safety device toil eye protection.Answers1. Depends on what is supplied.2. Weighing the fats and oils and calculating the exact amount of bromine water used per mole.3. Unsaturated compounds contain double covalent bonds.Classic chemistry experimentsUnsaturationin fats and oilsIntroductionAdvertisements often refer to unsaturated fats and oils. This experiment gives a affinity of unsaturation in various oils.Burettecontainingbromine waterConical flaskOil and VolasilWhite tileWhat to geniusVolume of bromine water required for each oil.What to do1. employ a teat pipette, add five-spot drops of olive oil to 5 cm of Volasil in a conical flask. 32. Use a burette filled with a dilute solution of bromine water (0.02 mol dm ) (Harmful and irritant). Read the burette.3. Run the bromine water easily into the oil solution. Shake vigorously after each addition. The yellow colour of bromine disappears as bromine reacts with the oil. Continue adding bromine water to produce a permanent yellow colour. 4. Read the burette. Subtract to find the flashiness of bromine water needed in the titration.5. Repeat the experiment with five drops of cooking oil (vegetable) and five drops of cooking oil (animal).SafetyWear eye protection.Questions1. Which sample is the most saturated and which is the most unsaturated? 2. This comparison is only approximate. How could the method be improved? 3. What does unsaturated mean?