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September 22, 2022Why should the burette be rinsed with NaOH before it is filled?
September 22, 2022Rinse with distilled water: With the stopcock closed, add some distilled water to the buret. Rinse with solution:. After you are finished with the buret in your experiment, rinse it by filling it with distilled water and allowing it to drain.
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- What can you pour down a drain to unclog a sink? Pour a pot of boiling water down your drain. Pour a mixture of one cup of water and one cup of vinegar down the drain. Cover the drain with a plug and wait 5–10 minutes. Flush the sink drain with boiling water.
- What do you rinse a pipette with? When you are finished with the pipet in your experiment, rinse with distilled water.
- When rinsing a burette after cleaning it with soap and water should the rinse be dispensed through the burette tip or the top opening of the burette Why? After cleaning a buret with soap and water, it is always rinsed with the titrant. In doing so, the rinsing solution must be dispensed through the buret tip as this will help in keeping the concentration of titrant same.
- Why are the sides of the burette tapped after filling it? 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. Close the stopcock, tap the buret sides gently, and allow the liquid to stand for a few minutes to clear gas bubbles dissolved in the liquid.
- Why is it necessary to remove bubbles from the tap and tip of the burette? If an air bubble exits the tip during a titration that volume of air will be registered as some of the volume of titrant that left the buret. This means that the volume of liquid delivered thru the tip will not be the amount calculated by subtracting the final buret reading from the initial buret reading.
- How do you use a burette step by step? Rinse the buret two or three times with the liquid you wish to use. Clamp the buret in a buret clamp attached to a ringstand. Fill the buret with the liquid you wish to deliver and read the volume. Slowly allow the liquid to drain into the receiving vessel.
