Virtual Lab - Double Displacement Reaction

🧪 CHEMISTRY LAB SIMULATION

Formation of Yellow Precipitate – Lead Iodide

1. Select the Concentration

🟦 Potassium Iodide (KI)

Colourless aqueous solution

Concentration: 0.50 M Volume: 20 mL

Not added

🧪 Lead(II) Nitrate

Pb(NO₃)₂ – Colourless aqueous solution

Concentration: 0.50 M Volume: 20 mL

Not added

2. Observe the Experiment

Laboratory apparatus

KI solution

Pb(NO₃)₂

Test tube

Waiting for solutions...

3. Experimental Observation

Add both solutions and click MIX to observe the reaction.

Precipitate: Not formed yet

Limiting reactant: Not calculated

4. Chemical Equation

2KI(aq) + Pb(NO₃)₂(aq)
↓
PbI₂(s) + 2KNO₃(aq)

Net ionic equation

Pb²⁺(aq) + 2I⁻(aq) → PbI₂(s) ↓

Observation: A bright yellow precipitate of lead(II) iodide is formed.

5. Test Your Understanding

Which compound is responsible for the yellow precipitate?

6. Important Safety Note

Lead compounds are toxic. This experiment is intended as a digital simulation. Do not handle lead nitrate or lead-containing waste without appropriate laboratory safety procedures and trained supervision.

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