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Determining concentration of limewater PAG12 task watch

    • Thread Starter

    I've been asked to research a method on finding the concentration of limewater using hydrochloride acid. In my introduction it wants me to write about the chemistry on which the titration is based - what does this mean ?

    Properties of limewater
    • It goes cloudy when CO2 is bubbled through it
    • It acts mildly like a base (high pH)

    • When an equal amount (in molar proportions) of acid and base is added, it'll neutralize and there will be a sharp change in pH (a single drop of HCl could change it from pH 10 to pH 4). A pH indicator will change colour almost instantaneously.
    • A titration is where you have a sample of unknown concentration which reacts with something of known concentration and with a little mathematical jiggling you can determine the concentration of the unknown (if they have an equal number of moles, the unknown solution's concentration would be that number of moles/volume)
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Updated: July 3, 2016
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