Final answer:
Without the Reference Table G or information on Solutions A-D, it's not possible to determine which solution contains 50 grams of solute per 100 grams of H2O at 75°C. Typically, one would refer to a solubility chart to find out the solubility of a substance at a certain temperature.
Step-by-step explanation:
The question provided appears to be related to solubility and the amount of solute that can be dissolved in water at a given temperature, which is a typical topic in Chemistry. However, the specifics needed to answer this question, such as Reference Table G, are not provided. Without the actual Reference Table G or descriptions of Solutions A-D, it's impossible to accurately determine which solution contains 50 grams of solute per 100 grams of H2O at 75°C.
For a generic approach to a similar problem, the student can look up the solubility of the substance in question at the given temperature using a solubility chart or table. The information on the chart would typically show how many grams of solute can be dissolved in 100 grams of water at various temperatures. The student would then select the solution that matches the criteria of dissolving 50 grams per 100 grams of water at 75°C.