Posts tagged as experiment

Determine the Percentage of Ethanoic Acid in Vinegar

Experiment : To determine the percentage of ethanoic acid in vinegar. Vinegar is a solution of ethanoic acid dissolved in water. The purpose of this titration is to find the percentage of this acid in the vinegar. Procedure Add 50 ml of vinegar to a volumetric flask using a 25 ml pipette twice. Make up the… Continue Reading →

Preparing a Standard Solution of Sodium Carbonate

Weigh the sample Weigh 1.30 g of sodium carbonate on an electronic balance, as accurately as you can. Use a clock glass. Two places of decimals would be best. Transfer to beaker Use a spatula to transfer the sample to a beaker of warm water (100ml). Rinse the clock glass. Rinse the remaining… Continue Reading →

Experiment: To prepare ethene and examine its properties

Ethene gas is prepared by dehydrating ethanol (drug found in alcoholic drinks). Ethene is a colourless gas with a sweet smell. It is a insoluble in water but can dissolve in organic solvents. Main Chemicals required Ethanol – CH3CH2OH Aluminium oxide – a white powder in appearance – Al2O3 Procedure   Pour small… Continue Reading →

Tests for Anions

Chloride ion Test: Add a few drops of Silver Nitrate (AgNO3) solution. Observation: A white precipitate is formed. Sulfate ion Test: Add BaCl2 solution to a solution of the solid. Observation: A white precipitate is formed. Carbonate ion Test: Add dilute HCL to the solid. Observation: Fizzing. The gas that is given off turns limewater milky. Nitrate ion Test: Brown ring test. Add freshly prepared FeSO4 solution to the solid…. Continue Reading →

Experiment: To prepare ethyne and examine its properties

Ethyne gas is prepared by the reaction of water with calcium carbide (CaC2). Ethyne gas is a colourless gas. Main Chemicals required Calcium Carbide (CaC2) [also known as calcium dicarbide] – A white/gray solid Acidified copper (II) sulfate solution Water Procedure Set up the apparatus as shown in the diagram. Place few pieces of… Continue Reading →