According to the solubility curve, the solubility of KCl is 30 g in 100 g of water at 10^circ C Which solution below is unsaturated? 20 g KCl in 100 g water 20 g KCl in 50 g water 40 g KCl in 100 g water 80 g KCl in 200 g water

To determine which solution is unsaturated, we need to compare the given solubility values with the solubility curve for KCl at the given temperature.Given information:- The solubility of KCl is 30 g in 100 g of water at .Let's analyze each solution:1. 20 g KCl in 100 g water: - The solubility of KCl at is 30 g in 100 g of water. - Since the given amount of KCl (20 g) is less than the solubility (30 g), this solution is unsaturated.2. 20 g KCl in 50 g water: - The solubility of KCl at is 30 g in 100 g of water. - If we assume the solubility is proportional to the amount of water, then the solubility in 50 g of water would be 15 g. - Since the given amount of KCl (20 g) is greater than the solubility (15 g), this solution is saturated.3. 40 g KCl in 100 g water: - The solubility of KCl at is 30 g in 100 g of water. - Since the given amount of KCl (40 g) is greater than the solubility (30 g), this solution is saturated.4. 80 g KCl in 200 g water: - The solubility of KCl at is 30 g in 100 g of water. - If we assume the solubility is proportional to the amount of water, then the solubility in 200 g of water would be 60 g. - Since the given amount of KCl (80 g) is greater than the solubility (60 g), this solution is saturated.Therefore, the only unsaturated solution is the first one: 20 g KCl in 100 g water.