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When the glass of a burette expands due to an increase temperature does the diameter of the bore increase or decrease?
When the glass of a burette expands due to an increase in temperature, the diameter of the bore decreases. This occurs because the glass expands uniformly in all directions, including the walls of the bore, which leads to a net reduction in the internal diameter. Consequently, the volume of liquid that can be held in the burette may be affected.
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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.
How do tighten burette clamp on?
To tighten a burette clamp, adjust the screw on the clamp to apply pressure on the burette. Turn the screw clockwise to securely hold the burette in place. Make sure the burette is held firmly but not over-tightened to avoid damaging the glassware.
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.
Why is it advisable to remove sodium hydroxide from the burette as soon as possible after titration?
Sodium hydroxide, particularly highly concentrated sodium hydroxide, can dissolve glass if left sitting long enough. Therefore, if you leave the sodium hydroxide in the burette after finishing your titration, you could increase the volume inside the burette from the glass being dissolved from the inside out. This would make the burette measure the titration volume inaccurately and would invalidate the results of future titrations done with this instrument.
What is a burette?
A burette is a glass tube with fine gradations and a stopcock at the bottom, used in laboratory procedures for accurate fluid dispensing and titration.
What is the hypothesis for the rate of flow fluid from an open burette?
The hypothesis for the rate of flow of fluid from an open burette could be that the flow rate is influenced by the diameter of the burette tip, the height of the fluid column above the tip, and the properties of the fluid.
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.
How do tighten burette clamp on?
To tighten a burette clamp, adjust the screw on the clamp to apply pressure on the burette. Turn the screw clockwise to securely hold the burette in place. Make sure the burette is held firmly but not over-tightened to avoid damaging the glassware.
What instruments holds the burette?
A ring clamp is used to hold a burette.
What is Relative standard uncertainty in burette?
The smallest possible burette reading is 0.10 and the uncertainty of a burette's reading is half of its smallest value (0.05).
What is the pupose of a burette?
A burette is used to very accurately measure liquid volumes.
What is is the use of burette holder in chemistry lab?
A burette holder is used in a chemistry lab to securely hold a burette in place during titration experiments. It prevents the burette from tipping over or falling, ensuring accurate and precise measurements of the volume of liquid being dispensed.
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 the curved surface of water in a burette called?
The curved surface of water in a burette is called the meniscus. It is caused by the surface tension of the water interacting with the walls of the burette.
What is the quantity measured by a burette?
A burette is used to measure the volume of a liquid being dispensed or transferred.
Why is it advisable to remove sodium hydroxide from the burette as soon as possible after titration?
Sodium hydroxide, particularly highly concentrated sodium hydroxide, can dissolve glass if left sitting long enough. Therefore, if you leave the sodium hydroxide in the burette after finishing your titration, you could increase the volume inside the burette from the glass being dissolved from the inside out. This would make the burette measure the titration volume inaccurately and would invalidate the results of future titrations done with this instrument.
What is the proper technique for filling a burette tip to ensure accurate measurements in a laboratory setting?
To ensure accurate measurements when filling a burette tip in a laboratory setting, the proper technique involves slowly and carefully filling the burette tip with the liquid being measured, making sure there are no air bubbles present. This can be done by allowing the liquid to flow down the sides of the burette tip and tapping the burette gently to release any trapped air bubbles. It is important to stop filling the burette when the liquid level is at the zero mark on the burette scale to ensure precise measurements.
