Final answer:
Calculating the amount of boric acid required for a prescription requires additional details from the prescription, which are not provided. The provided information about E=0.52 pertains to the equivalent weight ratio used in pharmacy compounding but is insufficient for the calculation.
Step-by-step explanation:
The student's question about how many grams of boric acid should be used in a prescription involves calculations relevant to pharmacy compounding and stoichiometry in chemistry. To arrive at the correct quantity, it's necessary to understand the percentage strength given as E=0.52, which typically represents the equivalent weight ratio concerning a particular substance. If details such as the volume or total weight of the prescription were provided, a proper calculation could be formed to determine the exact grams of boric acid needed. However, with the information given (E=0.52 and without the actual prescription details), we are unable to calculate the precise amount required.