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The extent of fragmentation for ionic compounds can be derived by comparing the molality expected if no dissociation with what is actually obtained from experiment. When 0.992 g of K3Fe(CN)6 (molar mass 329.25 g/mol) is dissolved in 100.0 g of water, the freezing point is found to be -0.224 oC. How many ions are present for each formula unit of K3Fe(CN)6 dissolved? (Kf for water is 1.86 K/m)

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