The boiling point of water in a 0.1 molal silver nitrate solution (solution A ) is x ^ C . To this solution A , an equal volume of 0.1 molal aqueous barium chloride solution is added to make a new solution B. The difference in the boiling points of water in the two solutions A and B is y 10^ -2 ^ C

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The boiling point of water in a 0.1 molal silver nitrate solution (solution A ) is x ^ C . To this solution A , an equal volume of 0.1 molal aqueous barium chloride solution is added to make a new solution B. The difference in the boiling points of water in the two solutions A and B is y 10^ -2 ^ C . (Assume: Densities of the solutions A and B are the same as that of water and the soluble salts dissociate completely. Use: Molal elevation constant (Ebullioscopic Constant), K_ b =0.5 ~K ~kg ~mol ^ -1 ; Boiling point of pure water as 100^ C .) The value of x is ___.

Quantrex Academy · Accepted Answer

Correct answer: A. A

Given for solution  A m = 0 . 1 i=  1  for  AgNO 3 = 2 K b = 0 .5 &#160; Kg &#160; mol - 1 So  &#916;T b = T b &#8722; T b &#8728; = 1 &#160; K b m T b &#8722; 100 &#8728; C = 2 &#215; 0 .5 &#215; 0 .1 T b = 100 &#8728; C + 0 .1 = 100 .1 &#8728; C

JEE Advanced Chemistry Question (2021) — Solution

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