How to add Carbon Dioxide to Sea Water
Things You'll Need
- Eye goggles
- 2 dropping pipettes
- Conical flask - 250 cm
- Small bottle of phenol red indicator solution (very flammable)
- Small bottle of sodium hydroxide solution (irritant)
Instructions
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Adding Carbon Dioxide to Water
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1
Place about 125 cm of water in the 250 cm conical flask. Add about one or two drops of the phenol red indicator solution into the water.
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2
Add two drops of the sodium hydroxide solution to the conical flask. This will cause the solution to become red.
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3
Add carbon dioxide into the flask. You can do this by saying the 'H' sound with your mouth or blowing gently. Continue this until a color change is observed.
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