Determination of solubility product of calcium hydroxide by titrating with standard hydrochloric acid
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Introduction
Aqueous calcium hydroxide, also known as lime water is used to verify the presence of carbon dioxide gas, (carbondioxide reacts with the calcium hydroxide to produce calcium carbonate) this is achieved by bubbling the gas through the solution, if the solution turns cloudy then the precipitate calcium carbonate has formed, thus carbon dioxide is present. It is very important for the accuracy of this test to have a saturated aqueous solution of calcium hydroxide and the Ksp of this substance allows us to determine exactly how much calcium hydroxide to dissolve until the saturation point is reached.
Purpose
The purpose of this experiment is to determine the Ksp value of aqueous calcium hydroxide by mixing it with a solution of hydrochloric acid with a known molarity until equilibrium is reached. This is done using the titration method.
Aqueous calcium hydroxide, also known as lime water is used to verify the presence of carbon dioxide gas, (carbondioxide reacts with the calcium hydroxide to produce calcium carbonate) this is achieved by bubbling the gas through the solution, if the solution turns cloudy then the precipitate calcium carbonate has formed, thus carbon dioxide is present. It is very important for the accuracy of this test to have a saturated aqueous solution of calcium hydroxide and the Ksp of this substance allows us to determine exactly how much calcium hydroxide to dissolve until the saturation point is reached.
Purpose
The purpose of this experiment is to determine the Ksp value of aqueous calcium hydroxide by mixing it with a solution of hydrochloric acid with a known molarity until equilibrium is reached. This is done using the titration method.
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