Preparing a solution from a solid


Water is not always the best solvent for preparing a solution! Be sure to choose the right solvent!!
Transcript : French English
Side note: this video was made to emphasize the important practical aspects, while at the same time keeping it humorous.

Filling a volumetric flask


It is absolutely essential that the eye is level with the calibration mark.
illustration of an eye looking at the level in a volumetric flask. the illustration is crossed out because the level is not correct, the meniscus does not reach the gauge line.


The bottom of the meniscus does not reach the calibration mark
The total volume is not correct.
illustration of an eye looking at the level in a volumetric flask. the illustration has a green tick because the bottom of the meniscus reaches the mark, so the volume is correct.


The bottom of the meniscus must reach the calibration mark
The total volume is correct

Preparing a dilution

Next page
Previous page