Question

All 204g of sugar will dissolve in 100g of water at 25ºC. This is the solubility of sugar. If 55g of sugar is dissolved in 50g of water at 25ºC then the solution is _______ compared to a solution that has 5g of sugar dissolved in 50g of water at 25ºC.
a. saturated
b. supersaturated
c. diluted
d. concentrated

Answer 1

Ha, that's funny, I've been trying to find that answer too,---- let me guess, you're in Connections Academy?

Answer 2

Answer: The correct answer is Option d.

Explanation:

Saturated solutions are defined as the solutions in which no more solute particles can be dissolved in the solvent.

Supersaturated solutions are defined as the solution in which more amount of solute particles is present than the solvent particles.

Diluted solution is defined as the solution in which only a little solute is dissolved in a certain amount of solvent.

Concentrated solution is defined as a solution which contains a large amount of solute relative to solution that has lesser amount of solute.

We are given:

204 g of sugar is dissolved in 100 g of solvent. So, solubility of sugar will be $\frac{204}{100}=2.04$ at 25ºC

For solution 1: 55g of sugar is dissolved in 50g of water at 25ºC. The solubility will be $\frac{55}{50}=1.1$ at 25ºC

For solution 2: 5g of sugar dissolved in 50g of water at 25ºC.  The solubility will be $\frac{5}{50}=0.1$ at 25ºC

So, the solution having solubility equal to 1.1 is concentrated as compared to the solution having solubility equal to 0.1

Hence, the correct answer is Option d.