preparation involves mixing liquids and dissolving solids in liquids. There are
many specialized devices in addition to balances, volume measuring devices, and
pH meters involved in these processes.
A. Magnetic stirrers –Magnetic
stirrers come in the form of a box witha magnet inside attached to a motor that
spins the magnet. When a vessel containing a magnetic stir bar is on top of the
magnetic stirrer, the stir bar spins and stirs the contents of the vessel.
B. Vortex mixer –A vortex mixer rotates the bottom of a tube rapidly; setting up a vortex in the liquid that rapidly mixes the contents.