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The freezing point of an aqueous solution of KCN containing 0.1 mol kg^(-1) was -0.38^(@) C. On adding 0.005 moles of Hg(CN)_(2) per kg of solvent, the freezing point of the solution remined as -0.38^(@) C. Assuming following reaction to be occured to 100% extent and none of the Hg(CN)_(2) remaining. Hg(CN)_(2)(aq)+x(CN)^(-)toHg(CN)_(x+2)^(x-)(aq) calculate the value of 'x'. |
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