⚗️ NCERT Class 11 & 12 Aligned

Virtual Volumetric Titration Simulator

Practice acid-base and redox titrations online before your board practical examination. Master burette parallax readings, drop-by-drop stopcock flow, indicator transitions, and stoichiometric molarity calculations with zero glass breakage.

Start Virtual Burette ReadingView Complete CBSE Practical Syllabus
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HCl vs. NaOH (Acid-Base)

Class A 50 mL Volumetric Burette & Conical Flask
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👁️ Meniscus rule: Read LOWER edge for clear solutions.
Burette Meniscus Reading
Target End Point: 20.0 mL
0.00mL titrant added
Conical Flask Color Observation
Colorless (Acidic pH < 8.2)
Titrant: 0.100 M NaOH (Sodium Hydroxide in Burette)
Analyte: 20.0 mL HCl Solution (in Conical Flask)
Indicator: Phenolphthalein (1-2 drops) • Phenolphthalein: Colorless → Faint Pink
HCl + NaOH → NaCl + H₂O
📊 Stoichiometric Molarity & Strength Calculation

Apply the standard NCERT volumetric formula to calculate the molarity and strength of the unknown analyte solution based on your concordant burette reading (V₁ = 20.00 mL).

(M₁ × V₁) / n₁ = (M₂ × V₂) / n₂ ==> M₂ = (M₁ × V₁ × n₂) / (V₂ × n₁)
M₁ (Titrant): 0.1 M
V₁ (Burette Used): 0.00 mL
V₂ (Analyte Pipetted): 20.0 mL
Reaction Ratio (n₁ : n₂): 1 : 1
Theoretical Molarity: 0.1000 M
Strength (g/L): 3.646 g/L
Verify Your Calculation:M

CBSE Class 11 & 12 Volumetric Experiments

Rigorous laboratory protocols mapped directly to the NCERT Chemistry Practical Manual.

1. Preparation of Standard Oxalic Acid Solution

Weigh exactly 3.15g of oxalic acid crystals on the analytical balance to prepare a 250mL M/10 standard solution. Practice using the volumetric flask and meniscus alignment.

2. Determination of Molarity & Strength of KMnO₄

Titrate warm (60°C) oxalic acid against unknown potassium permanganate. Record three concordant burette readings and calculate molarity down to four decimal places.

3. Mohr’s Salt Redox Titration

Ferrous ammonium sulfate vs. KMnO₄ titration without heating to avoid thermal decomposition of Fe²⁺ ions. Self-indicating transition to faint persistent pink.

4. Strong Acid vs. Strong Base Titration

Standardize 0.1M sodium hydroxide against hydrochloric acid using phenolphthalein indicator. Master sharp endpoint detection at pH 8.3.

Titration Practical Viva & FAQ

Common questions asked by external practical examiners.