1N Prelab #12

1N Prelab #12 - Rebecca Clinite Chem 1N Prelab#12...

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Rebecca Clinite 5-24-06 Chem 1N Prelab #12 Solubility Product for Calcium Hydroxide Purpose: In this experiment, a saturated solution of Ca(OH)2 will be made by reacting calcium metal with water followed by filtering off the solids. To determine the concentration of dissolved hydroxide, an acid-base titration will be conducted with a standardized HCl solution. Also, the K sp for Ca(OH)2 will be found from the saturation concentration of hydroxide found in the experiment. Definitions : 1. saturated: To cause (a substance) to unite with the greatest possible amount of another substance 2. solubility product constant: the constant of an ionic compound in moles/liter. Questions: 1. The equilibrium constant doesn’t include the concentration of the solid because it is always present as a pure solid (constant concentration). 2. You wouldn’t wash the precipitate because it would react to form Ca(OH)2 again since the reaction is in equilibrium and added water would cause the reaction to shift toward the reactants
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This note was uploaded on 04/15/2008 for the course CHEM 1N taught by Professor Roland during the Spring '06 term at UCSC.

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1N Prelab #12 - Rebecca Clinite Chem 1N Prelab#12...

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