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What is a buret used for in titration analysis?
AHeating the sample to drive off water
BWeighing a dried precipitate accurately
CDelivering measured volumes of liquid
DStoring the sample away from the air
Answer & Solution
Correct answer: C. Delivering measured volumes of liquid
1. A buret is a graduated tube fitted with a tap.
2. It delivers variable liquid volumes precisely, reading to the nearest 0.01 mL.
3. This lets titrant be added a little at a time until the reaction is just complete.
4. Heating and weighing belong to gravimetric methods, not to the buret.
_Source: OpenStax Chemistry (CC BY 4.0), Ch 4 "Stoichiometry of Chemical Reactions", section 4.5 Quantitative Chemical Analysis_
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