Final answer:
The quantity of NaG3 needed to reach the equivalence point in a titration depends on its concentration; without this information, the precise volume cannot be determined in option (c).
Step-by-step explanation:
The quantity of NaG3 required to reach the equivalence point in titration depends on the concentration of the NaG3 solution. Without information about the concentration, it is not possible to determine the exact volume of NaG3 needed.
The provided options A) Not provided in the information, B) 25 mL, C) Depends on the concentration of the NaG3 solution, and D) 50 mL suggest that the correct answer is C) Depends on the concentration of the NaG3 solution.
In a titration, the equivalence point is reached when the number of moles of acid equals the number of moles of base, which is dependent on the concentration and volume of the titrant and analyte.