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Precipitation from Solution

The K sp of chromium (III) iodate in water is 5.0 x 10 -6 . Estimate the molar solubility of the compound. Cr(IO 3 ) 3 (s) ? Cr 3+ (aq) + 3 IO 3 - (aq) 1 mole Cr(IO 3 ) 3 produces 1 mole Cr 3+ and 3 moles IO 3 - K sp = [Cr 3+ (aq)] [IO 3 - (aq) 3 = (s) (3s) 3 = 5.0 x 10 -6

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