If the freezing point of a \( 0.01 \) molal aqueous solution of a cobalt(III)cloride-ammonia com...

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If the freezing point of a \( 0.01 \) molal aqueous solution of a cobalt(III)cloride-ammonia complex (which behaves as a strong electrolyte) is \( -0.0558^{\circ} \mathrm{C} \), the number of chloride(s) in the coordination sphere of the complex is :
\( \left[K_{f}\right. \) of water \( \left.=1.86 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}\right] \)
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