Answer:
The mass of the solid is approximately 11.61 grams.
Explanation:
To determine the mass of the solid, you can first calculate the total mass of the system (solid + liquid) and then subtract the mass of the liquid solvent.
1. Calculate the mass of the liquid solvent using its density and volume:
Mass of liquid = Density × Volume
Mass of liquid = 0.865 g/mL × 86.0 mL = 74.39 g
2. Now, subtract the mass of the liquid from the total mass of the system to find the mass of the solid:
Mass of solid = Total mass - Mass of liquid
Mass of solid = 86.0 g - 74.39 g = 11.61 g
So, the mass of the solid is approximately 11.61 grams.