Answer :
Final answer:
An accurate prediction of the temperature at which sugar crystals begin to form in a syrup solution requires solubility data for sucrose at various temperatures. Without this, one can generally state that crystallization occurs when the solution is cooled below its saturation point, which varies with sugar and water amounts.
Explanation:
The question about sugar syrup and the temperature at which sugar crystals form relates to the concept of solubility and saturation of solutions in chemistry. However, without specific solubility data for sucrose at various temperatures, which typically comes from a solubility curve or table, a precise temperature cannot be provided. The formation of crystals in a supersaturated solution, like the sugar syrup described, occurs when the solution is cooled below its saturation point. This point varies with the amount of solute (sugar) and solvent (water), and ideally, with specific data, one could consult a solubility curve for sucrose to find the temperature at which the solution becomes supersaturated and crystals begin to form.
To predict the temperature accurately, one would need the solubility of sucrose in water at various temperatures. This experimentally determined information tells us how much sucrose can dissolve in water at different temperatures. As the solution is cooled, if the sucrose concentration is beyond its solubility limit at the new temperature, crystals will start to form. This process is influenced by factors including the rate of cooling and the presence of impurities or 'seed' crystals to initiate crystallization.