If a solution contains 100g of KBr at 40 degrees Celsius fully dissolved, is the solution unsaturated, supersaturated, or saturated?
To determine whether the solution is unsaturated, supersaturated, or saturated, we need to compare the amount of solute (KBr) in relation to the maximum amount that can be dissolved at that temperature (40 degrees Celsius).
1. Look up the solubility of KBr at 40 degrees Celsius. The solubility of KBr varies with temperature, so we need this information to determine if the solution is saturated or not.
2. Once you have the solubility value, compare it to the amount of KBr present in the solution (100g).
- If the solubility of KBr at 40 degrees Celsius is greater than 100g, then the solution is unsaturated. This means that there is still room for more KBr to dissolve.
- If the solubility of KBr at 40 degrees Celsius is equal to 100g, then the solution is saturated. This means that the maximum amount of KBr has dissolved.
- If the solubility of KBr at 40 degrees Celsius is less than 100g, then the solution is supersaturated. This means that more KBr has dissolved than what is normally expected at that temperature, and the solution is in an unstable state.