To read a burette, the experimenter must remember that the numbers starts at 0.00 on the top and go to 25.00 at the bottom. He must read the liquid level using the bottom of the meniscus which is a curved surfaces that existed at the top of the liquid level.

A buret should be cleaned and primed before use. To clean a buret with distilled water, close the stopcock and place about 5 mL of distilled water in the buret. Carefully, hold the buret horizontally over a sink and rotate the buret so that the entire inner surface is coated with the distilled water.

How should you read a buret? A buret should be read from the top down with two decimal points. Remove your buret from the clamp and fill it at eye level, Use a funnel, Make sure the stopcock is closed and pour slowly.

Touch the tip of the buret to the side of a beaker to remove the drop hanging from the tip. After about a minute, to allow for drainage, make an initial reading of the meniscus, estimating the volume to the nearest 0.01 mL. Record the initial reading. Allow the buret to stand for 5 minutes and recheck the reading.

To check, adjust, or determine by comparison with a standard (the graduations of a quantitative measuring instrument). Calibrate a thermometer. The definition of calibrate means to correct or adjust the graduations of something that measures, in comparison to a certain standard.

A burette is used to dispense small volumes of liquid called aliquots, or sometimes gas, with high accuracy. It consists of a long glass tube with a valve at one end to control the flow of liquid. Burettes serve essentially the same purpose as a pipette.

To clean the buret, use the following procedure:

1. Rinse with distilled water. With the stopcock closed, add some distilled water to the buret.
2. Rinse with solution.
3. After you are finished with the buret in your experiment, rinse it by filling it with distilled water and allowing it to drain.

Due to the fact, that all burettes are made of glass, it can absorb and remain water on the surface, because of the polarity of the glass and intermolecular forces. Thus, you have to rinse the burette with a solution which must be filled in it, because distilled water change the concentration of the initial solution.

The buret should be properly cleaned to ensure no contaminants are present. In order for your buret to perform optimally, it must be properly cleaned. If droplets remain on the inside surface, wash the buret with detergent solution, rinse several times with tap water, then rinse three times with distilled water. 2.

So that drops of solution from the funnel do not drip into the burette, affecting the volume of solution. Why is it important to clamp the burette vertically? To allow the liquid level to be read correctly. Why is it important to have the part below the burette tap full?

It means to pipet (or inspirate, suck up) some of the liquid that you are going to measure with the pipet to coat the inside of the glass and let it drain out, before you actually measure the amount that you want.

After filling the buret with solution, drain a few milliliters of liquid through the stopcock into a beaker to remove any air bubbles trapped in the valve. This step is important because the hanging drop is part of the volume delivered by the buret.

make sure the jet space in the burette is filled with the solution and air bubbles are removed. If the jet space in the burette is not filled properly prior to commencing the titration it will lead to errors if it then fills during the titration, leading to a larger than expected titre reading.

Why is a graduated cylinder more accurate than a beaker? The accuracy of a graduated cylinder is higher because the graduations on the cylinder make it easier to more precisely fill, pour, measure, and read the amount of liquid contained within.

Volumetric flasks, burets and pipets are the most accurate with tolerances of less than 0.2%. To achieve these accuracies the person using the device needs to use the proper technique and the measurements need to made at the temperature for which the glassware was calibrated (usually 20 degrees C).

Graduated cylinders, beakers, volumetric pipets, burets and volumetric flasks are five kinds of glassware often used to measure out specific volumes. Volumetric pipets, flasks and burets are the most accurate; the glassware makers calibrate these to a high level of accuracy.

To measure small amounts of liquid, use standard measuring spoons. Hold the spoon level in the air straight across from your eyes. Carefully trickle the liquid into the measuring spoon until it reaches the rim. Stop when the meniscus is at the bottom of the line.

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