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When starting with an initially high concentration of Calcium Hypochlorite and reducing the concentration after initial settling by adding tap water, the resulting amount of precipitate in solution was found to decrease from 0.12 in height to 0.01 in a 30g/L solution. These are dimensionless heights measured as the height of precipitate forming divided by the height of solution. This data reveals a 80% reduction in precipitate found to accumulate. The full results are shown below (Figure 4).
Figure 4: Height of
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precipitate forming at 100g/L solution and
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diluted 30g/L solution.
From this data, it can be inferred that in the first day that the 100g/L solution was allowed to sit, a lot of the precipitate did settle out. Most of the precipitate found in the diluted 30g/L solution probably came from the precipitate that remained suspended on the top of 100g/L solution due to the CO2 gas rising.
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