Question

At 30°c, the solubility of a substance is 60. what amount of substance can be obtained by vapourising 90g of the saturated solution of that substance?​

Answer 1

ANSWER

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.