Final answer:
The most precise measurement of a Gold bar's volume can be determined using a graduated cylinder by estimating the position of the meniscus.
Step-by-step explanation:
The most precise measurement of a Gold bar's volume can be determined through a quantitative measurement using a graduated cylinder. The cylinder's scale permits measurements to one-tenth of the smallest scale division.
For example, if the smallest division is 1 mL, the volume can be measured to the nearest 0.1 mL. By checking the position of the meniscus, which is the bottom of the curved surface of the liquid, and estimating its position, the most precise measurement of the volume can be determined.