🧫 Titration Curve Simulator - Acid-Base Titration
Acids & BasesWhat's happening? Strong acid-strong base: equivalence at pH 7. Weak acid-strong base: equivalence at pH > 7. The steep part of the curve is where the indicator changes color.
Titration: 3-5 questions every year.
JEE tests equivalence point pH, indicator selection, buffer region.
Key formulas
Titration Curve Formulas
Half-equiv
pH = pKa
At half-neutralization
Equiv point
MaVa = MbVb
Moles acid = moles base
Buffer
pH = pKa + log([A-]/[HA])
Henderson-Hasselbalch
Indicator
pH range triggers color
Phenolphthalein: 8.2-10
Step-by-step problem solving
How to solve chemistry problems in JEE
- Identify acid/base types
- Find equiv volume: MaVa = MbVb
- Determine equiv pH
- Use buffer equation in buffer region
Common JEE mistakes
What students get wrong
Wrong equiv pH
Strong-strong: 7. Weak-strong: >7. Strong-weak: <7
Ignore dilution
Recalculate after mixing
Wrong indicator
Match range to equiv pH
Polyprotic
Each proton has own equiv point
FAQs
Titration Curve Questions
Buffer region?
Flat part where pH resists change. Both HA and A- present
Choose indicator?
Range must include equiv pH
Equiv pH not 7?
Weak acid-strong base: conjugate base hydrolyzes (pH>7)
Curve steepness?
Steeper = stronger acid