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Describe the steps to determine evolution of CO2 gas during a reaction in laboratory. |
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Answer» t effective way to test for CO2 is to bubble the gas through "limewater", a diluted solution of calcium hydroxide (slaked LIME). When you bubble CARBON DIOXIDE through the solution, it forms a solid precipitate of calcium carbonate – chalk or limestone. Calcium carbonate is insoluble in water.Thus, if there is CO2 present in the sample, the limewater will TURN milky, cloudy white.Hope it helps:) |
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