Answer to Question #95021 in General Chemistry for ash

Question #95021

What test can you run to know if Carbon Dioxide is present besides the limewater test?

Expert's answer

1. Smoldering glow fades

2. Reaction with barite water Ba(OH)₂:

Ba(OH)₂ + CO₂ = BaCO₃↓ + H₂O

3. Reaction with Sr(OH)₂:

Sr(OH)₂ + CO₂ = SrCO₃↓ + H₂O

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