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What are the factors that should be considered while using a burette?
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What is the purpose rinsing the burette with distilled water during titration?
Burette is used to measure the accurate value of taking products and we will calculate the lower minuscus and upper minucus of the burrete that's why we using the burette
What is the advantage of using burrette compared to using measuring cylinder?
A burette is preferred for titration over a measured cylinder because it can give a finer volume reading. You can also add in all your chemicals at the start of the experiment.
What is the advantage of using a Buret?
the burette is more accurate than the pipette as it contains marks like a ruler so you are able to clearly identify the volume. However, with a pipette you can only measure the volume nearest to the ml.
What is a titration?
A titration is the use of carefully measured amounts of a known solution to determine the concentration of another. They often involve acid-base neutralisation or oxidation-reduction reactions (examples would be sodium hydroxide with hydrochloric acid, or permanganate with an iron solution). The main part of the system is the burette, a large graded tube with a controllable variable nozzle at its end. This nozzle is used to add different amounts with great precision to the solution being tested, so that an exact reading can be made - if done correctly, the titration's accuracy is limited only by the scale on the burette. A sample of the test solution (collected using a pipette with a known volume and high degree of accuracy; the sample is called an aliquot) is placed in a container, usually a conical flask, under the burette. The burette is filled with known solution, i.e. one where the concentration is know to another high degree of accuracy. The two are mixed slowly and allowed to react - for acid-base titrations an indicator will be added to the flask, for redox the solution which will change colour is put in the burette. This is continued slowly until the solution will barely react with that from the burette. At this point the amount of solution taken from the burette is recorded. Ideally, the next slightest drop of burette solution will cause a change in colour of the solution that does not change at all. If not, the new recording is made and the last step repeated. This amount is a titre. The whole experiment is repeated several times. The data is collected and averaged out. From this, an amount of known solution used, an amount of tested solutio used and eventually a concentration can be found.
Safety precautions of using a burette?
Check for damage, volume (is it the correct volume for your procedure? is it a blow out pipette? where the meniscus should fall before proceeding), clean and dry, use index finger to control volume, always condition equipment.
What is the most accurate way to measure volume?
using pycnometry because the density of water is very accurate
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 purpose rinsing the burette with distilled water during titration?
Burette is used to measure the accurate value of taking products and we will calculate the lower minuscus and upper minucus of the burrete that's why we using the burette
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What is the advantage of using burrette compared to using measuring cylinder?
A burette is preferred for titration over a measured cylinder because it can give a finer volume reading. You can also add in all your chemicals at the start of the experiment.
