Question

how much sugar dissolve in hundred gram of water at a) 30C​

Answer 1

Here the mass of water is 100 gm. So, 100 gm of solvent (water) of a 2.11 (m) solution will contain =2.111000×100=0.211 moles of solute (sucrose). Again, the gram molecular weight of sucrose is given as 342 gm. Hence, the correct option is (B).

Answer 2

You will produce a saturated solution.

Explanation:

Sugar is said to have a solubility of 180 g in 100 g of water at 0∘C. This tells you that dissolving that much sugar per 100 g of water would produce a saturated solution.

A saturated solution is a solution in which the rate at which solid particles are dissolved is equal to the rate at which dissolved solute particles reform the solid.

Simply put, a saturated solution is a solution that cannot dissolve more solute than what is already dissolved.

By comparison, in an unsaturated solution, the rate at which solid particles are dissolved exceeds the rate at which dissolved particles reform the solid, which means that the solution can dissolve more solute than what is already dissolved.