Final answer:
The mass of 16.0 mL of mercury at 20°C is 217.6 grams.
Step-by-step explanation:
The mass of a substance can be calculated by multiplying its density by its volume. In this case, the density of mercury is given as 13.6 g/cm³, and the volume of mercury is 16.0 mL. To find the mass of 16.0 mL of mercury, we can use the following formula:
Mass = Density x Volume
Substituting the given values:
Mass = 13.6 g/cm³ x 16.0 mL = 217.6 g
Therefore, the mass of 16.0 mL of mercury at 20°C is 217.6 grams.