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How to carry out a titration
Equipment
Burette
Clamp and stand
Conical flask
Glass pipette and filler
Wash bottle
Indicator (e
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phenolphthalein)
Your acid solution
Your alkali solution

Method
1) Using the wash bottle, rinse the burette and the pipette
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After rinsing with water, rinse the pipette with the alkali solution
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2) Fill the burette with the acid and record the initial volume
3) Place the pipette filler onto the top of the pipette and squeeze it to create a vacuum
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Hold the ‘up’ button on the filler until the bottom of the meniscus
of the solution rests on the 25cm3 line
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4) Add a few drops of indicator to the conical flask
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For example, phenolphthalein changes from pink in an alkali solution to colourless in
a neutral solution
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This leaves you with a number of cm3 that you can run the tap quickly for
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You would know that you could let
18cm3 out of the burette quickly before slowing the release to drips
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Remember to constantly swirl the conical flask
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Then, as soon
as you see one drop cause a colour change of the solution, turn the tap off
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8) Repeat the experiment until you get at least 2 results that are concordant with one another- this
means that they are within 0
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Only use concordant values when calculating the
mean titre as again this improves accuracy

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