Ion Concentration

A) Dissociation

• Ionic Compounds are made up of 2 parts
• +Cations: Positive charge particles
• - Anions: Negative Charge particles
• When ionic compounds are dissolved in eater, the cation  and anion separate from each other.

e.g) HCl → H+ +  Cl-

• The process is called "Dissociation"
• When Writing dissociation equations atoms and charges must be balanced 

e.g) Sodium Chloride
       NaCl → (Na+) + (Cl-)

• If the volume  does not change then the concentration  of individual ions depends on the balanced coefficient the dissociation equation.