Titration Analysis of vinegar Essay

Question: What Is the molar concentration of acetic acid In a sample of vinegar? Prediction: The manufacture of claims on the label that the vinegar contains 5. 0% acetic acid, which translates into a 0. 87 mol/L concentration of acetic acid. The concentration of acetic acid In the vinegar sample should be the same. Purpose: If we add acid solution to basic solution to produce water and salt this activity is called titration. It involves carefully adding one solution to another until chemically equivalent amounts react.

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Vinegar is a solution of a weak acid In water. This acid will react with the base sodium hydroxide In a molar ratio. If a solution of Noah of known concentration will used titrate vinegar, it is possible to determine the amount of acetic acid. The main three things from this experiment are: to determine the concentration of vinegar, to verify the description on the product labels, practice the chemical testing technique of titration. The balanced chemical equation for the naturalization of acetic acid with Noah Is:

Safety notes: Wear safety glasses and if available. Noah is corrosive to flesh and can cause blindness. Wash up spills immediately using large amounts of water. Rinse your hands under running water If you come in contact with the Noah solution. Wash your hands upon completion of the lab. Materials: Lab apron eye protection Noah(as) vinegar Phenolphthalein wash bottle of pure water Two mall or mall mall beaker mall volumetric flask with stopper mol burette ring stand burette clamp stirring rod small funnel woo mall Erlenmeyer flasks meniscus finder Procedure: 1. Ml of vinegar was obtained in a clean, dry mall beaker. 2. One 10. Mol portion was pipette into a clean mall volumetric flask and dilute to the mark.

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