burette, 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. On a liquid burette, the stopcock is at the bottom, and the precise volume of the liquid dispensed can be determined by reading the graduations marked on the glass tube at the liquid level ...
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A burette is a volumetric measuring glassware which is used in analytical chemistry for the accurate dispensing of a liquid, especially of one of the reagents in a titration. [4] The burette tube carries graduated marks from which the dispensed volume of the liquid can be determined. [5] Compared to a volumetric pipette, a burette has similar precision if used to its full capacity, but as it ...
The stopcock valve is used to control the flow of liquid from the burette in either a steady stream or drop-by-drop. Unlike a pipette, the sample quantity delivered by a burette is changeable. For gas measuring burettes, the stopcock is located at the top of the burette’s glass tube.
A burette is a crucial laboratory instrument widely employed in quantitative analysis, particularly in industrial chemical tests involving titration. It is instrumental in determining the concentration of unknown solutions by utilizing solutions of known concentration. Burettes play a pivotal role in laboratories by facilitating precise liquid measurement and dispensing. Their primary ...
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