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Why can't we read from top of meniscus when using a pipette or volumetric flask but we can for burette readings whilst not affecting the results?
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Why is it important to clean a burette?
It is important to remove the filter funnel before adjusting the level of the burette so as to prevent the residual drops of the reagent from dripping into the burette. Which can lead to inaccurate volume readings.
Why 27 degrees Celsius written on burette?
On the burettes (also pipettes, volumetric flasks, etc.) is marked the calibration temperature; but this temperature is 20 0C.
Which instrument is most often used to measure acid volume before a titration begins?
A volumetric flask is usually used; it is the most accurate instrument for liquid volume measure, and since titrations are highly quantitative, it's the best choice.
How do you clean pipette?
First remove all the solid particles from the burette using a scrubber. Then wash the burette with tap water followed by distilled water thoroughly (even the nozzle). Then wash the burette with the solution to be used in the burette.
What is meniscus level?
When a liquid is held in a vessel, the water adheres to the side of the vessel. So when the amount of liquid held by the vessel is less than the full amount the vessel will hold, the liquid level rises where it touches the vessel. It "sticks" to the side of the vessel hard enough to be above the top of the liquid. This is called a negative meniscus. When the level of the liquid is higher than the top of the vessel (but doesn't overflow the top due to the surface tension of the liquid), then there is a positive meniscus.
Which meniscus is to be seen in the burette containing kmno4 solution and why?
upper meniscus...
Which is most accurate burette beaker measuring cylinder and volumetric flask?
burette
What do you use a burette for?
The pricipal use is in the volumetric titration - a method of quantitative chemical analysis.
What is Volumetric Buret used for in labs?
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. The burette tube carries graduated marks from which the dispensed volume of the liquid can be determined.
What is the proper way to read a burette?
Any fluid!!! It is like a pipette, however, it is usually more accurate because you can use a burette loader which allows fine tuning of the liquid but not as fine as a gilson pipette. Basically, it is just a piece of apparatus used measuring liquids.
Why it is important to obtain the end-point with just one drop from the burette?
This is important for the exactitude of the volumetric determination - to know exactly the volume of the titrant.
Why is it important to clean a burette?
It is important to remove the filter funnel before adjusting the level of the burette so as to prevent the residual drops of the reagent from dripping into the burette. Which can lead to inaccurate volume readings.
Why 27 degrees Celsius written on burette?
On the burettes (also pipettes, volumetric flasks, etc.) is marked the calibration temperature; but this temperature is 20 0C.
Is a burette more accurate than a volumetric flask?
I think that they are the same as in accuracy but to be sure I would ask my science teacher
How get the accutare titration value?
Titration value describes how accurately a substance is dissolved in another substance. In order to find this number, you need a pipette, a burette, and a volumetric flask.
What do you need to read a small quantity of liquid?
A burette (also buret) is a vertical cylindrical piece of laboratory glassware with a volumetric graduationon its full length and a precision tap, or stopcock, on the bottom.Picture is in 'Related links'
Why do you use burette to measure liquid during titration?
Any (variable) amount of liquid can be measured by weight (mass balance) or by volume.A titration is mostly carried out as volumetric analysis method.An INVariable amount is measured by a (volumetric, standardized) pipet and for Variable volumes a calibrated buret is used to reach high precision standards of AAAC.
