A 1.00 molar aqueous solution of trichloroacetic acid (CC l 3 COOH) is heated to its boiling point. The solution has the boiling point of 100.18 0 C. Determine the van’t Hoff factor for trichloroacetic acid. (K b for water = 0.512 kg mol -1 ) - Wired Faculty

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A 1.00 molar aqueous solution of trichloroacetic acid (CCl₃COOH) is heated to its boiling point. The solution has the boiling point of 100.18⁰C. Determine the van’t Hoff factor for trichloroacetic acid. (K_b for water = 0.512 kg mol^-1)

Solution

Molality of solution = m = 1.00 m

Boiling points of solution = T_b = 100.18⁰C = 373.18 K

Boiling point of water (solvent) = $straight T subscript straight b superscript 0$ = 100.00° C = 373 K
Elevation in boiling point = $straight T subscript straight b superscript 0$ - T_b

Observed boiling point = 373.18 K - 373 K = 0.18 K

K_b water = 0.512 K kg mol^{- 1}

∴ $increment$ T _b= K_bx m

= 0.512 x 1 = 0.512 K

∴ Calculated boiling point = 0.512 K
$Van apostrophe straight t space Hoff space Factor space left parenthesis straight i right parenthesis space equals space fraction numerator Observed space Colligative space Property over denominator Calculated space colligative space Property end fraction space space space space space space space space space space space space space space space space space space space space space space space space space space equals fraction numerator 0.18 straight K over denominator 0.512 space straight K end fraction space space straight i space equals space 0.35$

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A 1.00 molar aqueous solution of trichloroacetic acid (CCl₃COOH) is heated to its boiling point. The solution has the boiling point of 100.18⁰C. Determine the van’t Hoff factor for trichloroacetic acid. (K_b for water = 0.512 kg mol^-1)

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A 1.00 molar aqueous solution of trichloroacetic acid (CCl3COOH) is heated to its boiling point. The solution has the boiling point of 100.180C. Determine the van’t Hoff factor for trichloroacetic acid. (Kb for water = 0.512 kg mol-1)

Some More Questions From Solutions Chapter

Calculate the mole fraction of benzene in solution containing 30% by mass in carbon tetrachloride.

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

A 1.00 molar aqueous solution of trichloroacetic acid (CCl₃COOH) is heated to its boiling point. The solution has the boiling point of 100.18⁰C. Determine the van’t Hoff factor for trichloroacetic acid. (K_b for water = 0.512 kg mol^-1)