question_answer

An element X (Atomic mass =25) exists as \[{{X}_{4}}\] is benzene. 51g of saturated solution of X in benzene was added to 50.0 g of pure benzene. The resulting solution showed a depression of freezing point of 0.55 K. Find the solubility of X per 100 g of benzene. \[{{K}_{f}}\,for\,\,benzene=5.5\,K\,kg\,mo{{l}^{\,-~1}})\]

Answer:

2