Final answer:
The density of mercury is calculated by dividing its mass (612.0 g) by its volume (45 mL), resulting in a density of 13.6 g/mL.
Step-by-step explanation:
The density of a substance is calculated by dividing the mass by the volume. We can apply this to calculate the density of mercury using the provided mass and volume. The given mass of mercury is 612.0 g, and the volume it occupies is 45 mL.
To find the density, we use the formula:
Density = Mass / Volume
= 612.0 g / 45 mL
= 13.6 g/mL
Therefore, the correct answer is A) 13.6 g/mL.