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Chemistry coursework assessment November2002 AN EXPERIMENT TO DETERMINE OF THE SOLUBILITY OF CALCIUM HYDROXIDE Giles Greenwell Aim To find the solubility of a sodium hydroxide solution (lime water). In this investigation, I intend to find the solubility of calcium hydroxide in water. Calcium hydroxide dissolves in water to form an alkaline solution. To find the solubility, I need to find the concentration of a saturated solution. To do this, I will titrate an acid of a known concentration, until I have a neutral solution. I can then find the number of moles of acid that reacted with the alkali, and so find the number of moles of calcium hydroxide. As the volume is known, the concentration, and therefore the solubility, can be found. Ca(OH)2 + 2HCl CaCl2 + 2H2O 1 2 1 2 You can see from the equation above that reacting with each mole of calcium hydroxide are two moles of hydrochloric acid. Therefore if the calcium hydroxide concentration was 1 mole dm-3, and the...

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