Use the solubility curve to answer the following question:
A solution of 40 grams of KCl at 50 degrees Celsius is ________________.
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a
supersaturated
b
saturated
c
unsaturated
b) saturated
To determine whether the solution of 40 grams of KCl at 50 degrees Celsius is saturated, unsaturated, or supersaturated, we need to compare the amount of KCl dissolved in the solution (40 grams) with the solubility of KCl at 50 degrees Celsius, as indicated by the solubility curve.
Looking at the solubility curve, we can see that at 50 degrees Celsius, the solubility of KCl is approximately 45 grams per 100 grams of water. Since the amount of KCl dissolved in the solution is less than the solubility at 50 degrees Celsius, the solution is unsaturated.
Therefore, the answer is option c: unsaturated.