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InterviewSolution
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A 1.00 molal aqueous solution of trichloroacetic acid ("CCl"_3COOH)is heated to its boilingpoint. The solution has a boiling point of 100.18^@C . Determine the van't Hoff factor for trichloro acetic acid (K_b " for water" = 0.512 K kg "mol"^(-1) ) . |
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Answer» Solution :Apply the relation ` Delta T_b = K_f xx m` ` Delta T_b = 0.512 xx 1 = 0.512` van.t HOFF FACTO =Observed ELEVATION in boiling POINT / CALCULATED elevation in boiling point `= (0.18)/(0.512) = 0.3516` |
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