Question

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How much common salt will be precipitated out if 160 g of saturated solution of common salt at 30degree C is cooled at 20degree C. The solubility of salt is 37 at 30 degree C and 35 at 20 degree C​

Answer 1

Answer:

Correct option is B)

weight of salt = 90 gram,

solubility = 50

sing formula

solubility of solute =

weightofsolventinsaturatedsolution

weightofsoluteinsaturatedsolution

×100

or 50=

weightofsolventinsaturatedsolutio

90gm

×100

so weight of solvent in saturated solution =

50

90gm

×100=180gm

Hence 180 gm of water is required to prepare a saturated solution.

Explanation:

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