[cbc-chem1210] Exp 1 data table in notebook

[robert zellmer]

It's best to simply use the analytical balance for all your masses.  
While for
certain pieces of glassware the top-loading balance would suffice, if 
you use
the analytical balance, which is more accurate and gives more decimal places
(and thus sig. fig.) you won't need to worry when it's safe to use the
top-loading balance.

Pipets and burets are meant "to deliver", assuming you use them correctly.
The video and the TA will explain this in lab.

Beakers are meant "to contain" the amount in the beaker.

Graduated cylinders can be tricky.  Look at the top of the graduated
cylinders.  There you will find either a "TD" or "TC".  You should write
this down in the notebook.  The "TD" means "to deliver" while the "TC"
means "to contain". This can make a difference and you want to record
this so you can discuss this in your report and how it might affect your 
results.

Finally, while the measured density is a calculated value and 
technically does
not have to be done in lab and recorded in the notebook, you may want
to do this calculation and record the numbers in your notebook.  For each
piece of glassware the density you obtain for each mass and volume should
be the same.  Thus, if three of them are very close and one isn't 
something is
wrong and you may wish to at least redo the one which is very different than
the others.  You want to do this before putting everything away and 
leaving lab.

Dr. Zellmer
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