The mass of the mercury at 25°C is 121.806 g or 121.81 g.
Step-by-step explanation:
The volume of the mercury = 9.000 mL.
The density of the mercury at 25°C = 13.534
.
The mass of the mercury =?.
density d =
.
⇒mass= density×volume.
mass=13.534×9.000.
mass=121.806 g or 121.81 g.