Burette
Burette
A burette is a graduated glass tube with a tap at one end, for delivering known volumes of a liquid, especially in titrations. It is a long, graduated glass tube, with a stopcock at its lower end and a tapered capillary tube at the stopcock's outlet.
Burette, also spelled Buret, laboratory apparatus used in quantitative chemical analysis to measure the volume of a liquid or a gas. It consists of a graduated glass tube with a stopcock (turning plug, or spigot) at one end.
A standard size laboratory burette can deliver up to 50.00 milliliters (mL) of liquid. (Other specialized burettes are larger or smaller.) The volume markings are precisely positioned at 0.1 mL increments so that you can read the volume to the first decimal place, and then estimate the second decimal place.
Burette is used to add titrant to the titrated solution and it has a scale on the side, so that you can precisely measure volume of the added solution. Burette is similar to the pipette, as it is designed to measure volume of the delivered liquid, but it can measure any volume of the solution.
Since acid has lower pH than base, acid is highly reactive and vulnerable than base. If we take acid in an burette solution, it should be properly opened, closed during the end point of reaction. This is the reason to take acid in an conical flask and base in an burette.
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