During titration, sometimes a small beaker is placed upside down on the buret. W

Question

During titration, sometimes a small beaker is placed upside down on the buret. What is the reason for this?

-The beaker prevents light from oxidizing the titrant

-Its a handy place to keep one in case the student needs it to hold a liquid

-The beaker tends to prevent carbon dioxide (from the air) from reacting with water in the titrant which changes its pH

-The beaker increases the atmospheric pressure on the titrant which in turn decreases the time required for the titration

-The beaker prevents any indicator from mixing with the titrant

Explanation / Answer

Ans:

The beaker increases the atmospheric pressure on the titrant which in turn decreases the time required for the titration

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