Q.

Molality of Sodium chloride at 373 K is nearly 6.15m. Its solubility at 273K is ‘x’ g/100g of water. Value of ‘x’ is

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a

55

b

36

c

12

d

9

answer is B.

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Detailed Solution

6.15=x58.5×1000100;     x=36 g ; Solubility of NaCl remains almost unaffected by change in temperature ;
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