Strength and concentration are two totalllly different things.
Do not mix them up!!!!
Strength:
A strong acid is one that fully dissociates to form hydrogen ions. An acid that is weak will only partially dissociate to form hydrogen ions. This must all sound new to you but it actually is not! Remember in the beginning when you learned that an acid is a proton donor? Well the strength of an acid is higher, it donates more hydrogen ions, which also means it has a higher pH. When it is a weak acid, it donates less hydrogen ions and it has a lower pH. Simple enough huh? |
Concentration:
The concentration of an acid or base is the amount of moles per unit volume. This means that if a solution has higher molarity, than its concentration is higher as well! This is completely different that strength of the solution. This picture shows two beakers with the same solution in it but one is in a smaller beaker. Since the beaker is smaller, their is more moles per unit volume, making its concentration higher then the larger beaker. |