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Determining the concentration of a limewater solution. This procedure will require a titration of an unknown concentration of limewater using a precisely known concentration of hydrochloric acid
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Determining the concentration of a limewater solution. This procedure will require a titration of an unknown concentration of limewater using a precisely known concentration of hydrochloric acid. Using equations the exact concentration of the limewater can be determined. This is useful as when an indicator such as phenolphthalein indicates the titration is complete, the known number of moles within the acid can be used to determine the concentration of the limewater. Equipment list: 50.0 ml Burette 1.00ml of HCl 2.00mol dm-3 250cm3 Limewater of approximately 1.00g dm-3 99.0ml Distilled water Phenolphthalein indicator 100ml Measuring cylinder 250ml Conical flask White tile Pipette Clamp Boss Stand Safety: In regards to safety when working with any hydrochloric acid, at 2M it is a classed as an irritant so gloves must be worn throughout. Also regardless of the concentration, lab goggles must be worn. Calcium hydroxide is also an irritant so gloves must be worn. Method: Firstly add 25.0ml of the sample limewater to a conical flask. Place the flask on a white...
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