🎯 Objective
Study the equilibrium shift in cobalt chloride system by changing temperature and chloride ion concentration.
Theory
[Co(H₂O)₆]²⁺
+ 4Cl⁻ ⇌
[CoCl₄]²⁻
+ 6H₂O
ΔH = +ve (Endothermic)
[Co(H₂O)₆]²⁺
Pink/Rose colored
[CoCl₄]²⁻
Blue colored
Le Chatelier
↑ Temp → Forward (Blue)
↑ [Cl⁻] → Forward (Blue)
Temperature
25°C
Cold
Hot
[Co(H₂O)₆]²⁺
→
←
[CoCl₄]²⁻
🔥
❄️
Pink Solution
[Co(H₂O)₆]²⁺ dominant
Add Chloride Ions (Cl⁻)
📊 Current State
Temperature:
25°C
[Cl⁻] Level:
Normal
Dominant Species:
[Co(H₂O)₆]²⁺
Color:
Pink
Lab Notebook
Observations will appear here...