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The pipette and burette are two apparatus that are used to measure the volume of liquids in titration. This is because titration is an experiment that requires accurate measurements of volume of liquids.
Both pipette and burette are more accurate compared to measuring cylinder.
We will revisit titration in the topic of Acid-Base Chemistry and in your practicals.
You need to understand how each apparatus works:
How does a pipette work?
The pipette is used to measure liquids at a fixed volume (either 10.0 cm3 or 25.0 cm3), which is why pipettes only have one marking
How does a burette work?
All burette readings is measured to 2 decimal places or the nearest 0.05 cm3, (e.g., 10.0 cm3 , 25.5 cm3).
As the 0.00 cm3 reading is found at the top of the burette, when measuring out volume, you will realise that the reading in the burette will "increase".
To not be confused, just remember this:
The final burette reading must always be larger than the initial burette reading. The below equation is then applied:
volume measured out = final burette reading - initial burette reading
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