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Chemistry
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When rinsing a buret after cleaning it with soap and water, should the rinse be dispensed through the buret tip or the top opening of the buret?  Explain.

Feb 26th, 2015

In order for your buret to perform optimally, it must be properly cleaned. To clean the buret, use the following procedure:

  1. Rinse with distilled water:
    With the stopcock closed, add some distilled water to the buret. Tip and roll the buret, allowing the water to have contact with all of the inside surfaces. Open the stopcock and allow the water to drain. If the water drains without leaving any droplets on the side, repeat the rinse twice more then move to step two. 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. Rinse with solution:
    After draining the final distilled water rinse, close the stopcock and add about 5 mL of the solution to be dispensed from the buret. Again, roll and tip the buret so the solution has contact with all the inside surfaces. Open the stopcock and allow the solution to drain. Repeat this twice more. Discard the solution used in the rinses.
  3. After you are finished with the buret in your experiment, rinse it by filling it with distilled water and allowing it to drain.

Feb 26th, 2015

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Feb 26th, 2015
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Feb 26th, 2015
Dec 2nd, 2016
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