Thanks. My chemistry teachers failed me in a lot of ways, especially when it comes to practical lab procedure and methodology. I have now been teaching high school chemistry for 5 years and am seeking to always learn more. Thanks for your videos and your book.

You must have the patience of a saint to be able to count all of those drops!!

Great video. This will certainly come in handy. Thanks Robert!

great stuff as always, RBT! I was looking forward to this new release :)

nice! very useful

very nice!

while you were counting those 100 drops, a significant quantity of water evaporated from the beaker. the vapor pressure of cold water is low , but not negligible.

Would the calibration of a volumetric flask or other glassware be affected by built to contain vs. built to deliver ratings on glassware?

cool i can actually use this