The solubility of salt at 30 $^{o}$ C is $50$ . Calculate the weight of water required to prepare a saturated solution containing $90 g$ of salt.

90 g

No worries! We‘ve got your back. Try BYJU‘S free classes today!

180 g

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

100 g

No worries! We‘ve got your back. Try BYJU‘S free classes today!

50 g

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C $180 g$
weight of salt = 90 gram,
solubility = 50
sing formula
solubility of solute = $\frac{w e i g h t o f s o l u t e i n s a t u r a t e d s o l u t i o n}{w e i g h t o f s o l v e n t i n s a t u r a t e d s o l u t i o n} \times 100$

or $50 = \frac{90 g m}{w e i g h t o f s o l v e n t i n s a t u r a t e d s o l u t i o} \times 100$

so weight of solvent in saturated solution = $\frac{90 g m}{50} \times 100 = 180 g m$

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

Suggest Corrections

Similar questions

Q. Dry air is passed through a solution containing 10 g of a solvent in 90 g of water and then through pure water. The loss in weight of the solution is 2.5 g and that of the pure solvent is 0.05 g. Calculate the molecular weight of the solvent.

Q. Solubility of salt X in water is 32 at 30

^{o}

C. Calculate the amount of solvent present in 500 g of saturated solution of X.

Q. The solubility of a salt at

40^{o} C

25 g m

and at

100^{o} C

it is

75 g m

. A saturated solution of

1.5 g m

of the salt is cooled from

100^{o} C

40^{o} C

. How much salt settle down?

(a) Find the solubility of $K N O_{3} a t 20^{\circ} C$ when the mass of the empty dish is 50 g, the mass of dish and solution is 65 g, while the mass of dish and residue is 54.3 g.

(b) What weight of sodium nitrate will separate when a saturated solution containing 50 gram of water is cooled from $50^{\circ} C t o 30^{\circ} C$ ? The solubility of $N a N O_{3} a t 50^{\circ} a n d 30^{\circ}$ is 114 g and 86 g respectively.

Q. When 100g of a saturated solution is evaporated at

50^{\circ} C

, 50g of solid is left over. Find the solubility of the substance at

50^{\circ} C

Join BYJU'S Learning Program

The solubility of salt at 30oC is 50. Calculate the weight of water required to prepare a saturated solution containing 90g of salt.

The solubility of salt at 30 $^{o}$ C is $50$ . Calculate the weight of water required to prepare a saturated solution containing $90 g$ of salt.