Question

Describe the procedure for delivering 34.78 mL of water into a beaker using a burette. Include any safety precautions that should be taken, and what you should do if you actually deliver more (or less) water into your beaker.

Answer 1

A byret stopcock is very useful tool in the chem lab, but it does have a few precautions. First make sure it is not chipped or cracked. You'll have to use a clamp on a ring stand to support it so make sure it is secure, but also be careful because it is fragile and will break easily. Make sure it is clean it is usually best to rinse it with copius amounts of distilled water and use soap if necessary, but rinse many times. Always make sure that the end of the buret is inside the rim of the beaker. Always add chemicals to the buret with a funnel, or a wash bottle if you need distilled water. A buret is typically alot safer than other instruments in lab, but make sure it is free of debris other wise it will compromise your experiment.

Fill the necessary solvent in buret and tanke the necessary amount you need of 34.78 mL.