Name ____________________________________ Date of Experiment_________ Period _____
Lab Partners ___________________________________________________________________
Electrolytes and Non-Electrolytes
Some substances, when dissolved in water or in a liquid state, have the ability to conduct an
These substances are called electrolytes.
The quantity of current conducted is
related to the number of ions that are present.
Some substances ionize completely (100%) when
dissolved in water.
These conduct the most current and are therefore classified as
Other substances ionize incompletely (less than 100%).
In other words, some of
the molecules ionize and some of them do not.
These compounds conduct less current and are
Finally, some compounds dissolve, but do not form ions when
Since no ions are present, no electrical current can be conducted.
These are called
To classify compounds as strong electrolytes, weak electrolytes, or non-electrolytes by testing
their conductivity in aqueous solution
at all times.
Do not touch any chemicals with bare hands.
Wash hands immediately if you get any materials on your hands.
Secure lids on all containers
when you are finished using them.
Reaction well plate, conductivity tester, pipette
Sodium chloride (NaCl), copper (II) sulfate (CuSO
), sucrose (C
), corn starch (C
, potassium chloride (KCl), potassium
Hydrochloric acid (HCl), acetic acid (C
), ammonia (NH
), sodium hydroxide