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JAMB Chemistry 2012 Paper

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Question : 16

Total: 45

Potassium trioxochlorate (V)has a solubility of 1.5 mol dm ^-3 at 45 ^oC.On cooling this solution to a temperature of 20 ^oC, the solubility was found to be 0.5 mol dm ^-3. What mass of KCIO ₃ was crystalized out?
[K = 39, Cl = 35.5 O =16]

1.00g
10.00g
12.25g
122.50g

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