Final answer:
The question asks to calculate the freezing point of a solution, but without the freezing point depression constant for ethanol and the specific relationship between mole fraction and freezing point depression, the calculation cannot be completed.
Step-by-step explanation:
The student's question "What is the freezing point of a solution of 498 mL of water (solute) dissolved in 2.50 L of Ethanol (solvent), C₂H₅OH?" pertains to the calculation of the freezing point depression of a solution using colligative properties. However, to calculate the freezing point, the freezing point depression constant for ethanol and any colligative property equation that relates the mole fraction of the solute to the depression of the solvent's freezing point would be needed. Unfortunately, these details are not provided in the question, and so the freezing point cannot be calculated without this information.