Stock solutions

See it

A stock solution contains a known concentration of a substance so that a smaller measured volume can be added to the final preparation. Stocks improve repeatability only when identity, concentration, solvent/diluent, storage, and version are clearly recorded.

Understand it

Try it

Explain the concept in your own words, then identify what plant, explant, stage, units, source, or observation context would need to be preserved before applying it.

Apply it

Connect this lesson to an actual MyTCLab record: what fields would you need in order to know later exactly what happened and why?