3.3.4 Titration Calculations
The Mathematical Art of Neutralisation
The Detective Work: You know the acid's strength. You know how much base it took to neutralize it. Now calculate the base's concentration using the Holy Trinity: n = C × V
The Chemical Detective Story
Imagine you're a quality control chemist at a pharmaceutical factory. A truck arrives with 1000 litres of sodium hydroxide solution, but the label is smudged. You can't read the concentration.
If it's too weak, the medicine won't work. If it's too strong, it could be dangerous. You need to know the exact concentration before production starts.
Your Tools:
- ✓ A standard acid (you know its concentration exactly)
- ✓ A burette (to measure volume precisely)
- ✓ An indicator (to show when neutralisation happens)
- ✓ Mathematics (the formula: n = C × V)
The plan is simple but elegant: Use the known acid to neutralize a sample of the unknown base. Measure how much acid it takes. Then use the mole ratio to work backwards and calculate the base's concentration.
It's like solving a murder mystery, but instead of finding the killer, you're finding the concentration!
🎓 Key Takeaways
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