To determine whether a solution of 40 grams of KCl at 50 degrees Celsius is unsaturated, saturated, or supersaturated, you would typically refer to a solubility curve for KCl which shows how much of the substance can dissolve in a given amount of solvent (usually water) at different temperatures.
You didn't provide the specific values from the solubility curve, but here's a general approach to answer the question:
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Find the solubility of KCl at 50 degrees Celsius from the curve: Look at the curve and see how many grams of KCl can dissolve in 100 grams of water at that temperature.
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Compare the given amount (40 grams) to the solubility:
- If 40 grams is less than the solubility at that temperature, the solution is unsaturated.
- If 40 grams equals the solubility, the solution is saturated.
- If 40 grams is greater than the solubility, the solution is supersaturated.
Without access to the solubility curve image, I can’t provide the specific answer. However, you should be able to follow these steps to find the answer when you have the curve in front of you.