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The freezing point depression of a 1.00 ...

The freezing point depression of a `1.00 xx 10^-3` m solution of `K_x[Fe(CN)_6]` is `7.10xx10^-3` K. Determine x given `K_f=1.86 K kg mol^-1` for `H_2O`. Assume `100%` dissociation.
`K_f=1.86 Kkg mol ^-1` for `H_2O`

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