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A complex compound is represented as CoCl ₃ xNH ₃ . Its 0.1 M solution in water shows depression in freezing point equal to 0.558 K . Assuming 100 % ionisation of complex and coordination number of Co to be six, calculate the value of ' 3 x '. K _ f for H ₂ O is 1.86 ~K kgmol ⁻¹ .

Correct answer

15

Step-by-step solution

array ll T _ f = i K K _ f m & i =1+( n -1) 0.558= i 1.86 0.1 & 3=1+( n -1) .1 i =3 n =3 & array [ Co ( NH ₃ )₅ Cl ] Cl ₂ x =5

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