Name: Microscale titration of vinegar. @bobworley7974
Uploaded: 2022-05-27T01:29:31-0400
Duration: 8 min 17 s
Description: Vinegar is diluted 4 times and titrated agaisnt 0.2M sodium hydroxide. The indicator is phenolphthalein. A drop of the indicator is added to the vial before the first weighing. If you do not have the right clamps, a Hofmann clip can be used.

Wobble a Puddle on a Nasturtian Leaf @bobworley7974

Uploaded December 2022 | Updated September 2026, 2 weeks ago

When Nasturtians are availble, students can demonstrate the the effect on an electrostatic field on water seated at their desk. No need for a messy stream of water. Make the bulb of a plstic pipeete electrosttic by rubbing it on cltother materail and bring it close to the puddle.

effect of an electrostatic field on a puddle of water

Lead chloride precipitation on thermochromic plastic with lithium chloride

RSC Microscale chemistry triumph video with music 1