Final answer:
The density of the gold ring is 19.3 g/cm³ based on the known mass-to-volume ratio of gold.
Step-by-step explanation:
The density of a gold ring can be determined by using the known mass-to-volume ratio of gold. For gold, this ratio is 19.3 grams per cubic centimeter (g/cm³), which is obtained through the formula d = m/V where 'd' stands for density, 'm' for mass, and 'V' for volume. The given explanation emphasizes that the density of the gold ring is derived directly from the known properties of gold, supporting the accuracy of the value. Therefore, the correct answer for the density of the gold ring is 19.3 g/cm³.