Experiments show that the solubility of alum in 25 ml of 1.4 M KOH and 10 ml of 9 M H2SO4 is approximately 1.0 g at 1.0 oC and 1.7 g at 6.0 oC. Estimate the amount of alum left in the 65 ml of a solution chilled to 4 oC. What might you do reduce the amount of alum remaining in solution?

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