Final answer:
To determine the solubility changes of salts with temperature, reference to their solubility curves is needed. Salts like NaCl show little change in solubility with temperature, while others like KNO3 have greater temperature-dependent solubility changes. The amounts of various salts needed to create saturated solutions at specific temperatures can be calculated using these curves.
Step-by-step explanation:
Based on solubility curves and the dependency of solubility on temperature for various salts, we can determine how their solubilities change with temperature. For instance, the substance whose solubility is least affected by a change in temperature would have a relatively flat solubility curve, much like that of NaCl. Conversely, compounds with steep curves, such as KNO3, show significant solubility changes with temperature. When answering specific questions like the solubility of KClO3 at 88°C or the required grams of KCl to saturate 100 grams of water at 60°C, one would refer to a solubility curve for those specific compounds at the given temperatures. To clarify the example given, if you have 28 grams of KClO3 dissolved at 60°C and you want to know how much more is needed to saturate the solution at 80°C, you'd check the solubility curve for KClO3. Find the solubility at 60°C and 80°C, determine the difference, and subtract the amount already dissolved (28 grams) from the solubility at 80°C to find out how much more is needed to reach saturation at that temperature.