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Solubility

Solubility - Chemistry Forum

Solubility - Chemistry Forum. Discuss chemical reactions, chemistry.


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Old 07-27-2010, 12:20 AM
Pipette Filler
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Default Solubility



Gypsum is formed by CaSO4. Suppose there is a crack in the ceiling, through which drain water at a flow rate b = 2.0 dm / day. If the plaster ceiling that has e = 1.50 cm thick, how long would it take to open a circular hole of diameter d = 1 cm?
Assuming that the density of plaster is d = 0.97 g/cm3 and its solubility product constant of KPS = 2 10-4 and 120g/mol= M (molar mass of CaSO4).
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