Answer:
The density of the solid is 1,316 g/mL
Explanation:
The weight of both Toluene and the solid insoluble is 58,68 g. And the weight of the solid is 32,50 g. Thus, weight of toluene is:
58,68 g - 32,50 g = 26,18 g of Toluene
To know how much volume that toluene occupy you must use density thus:
26,18 g of toluene × ( 1 mL / 0,864 g) = 30,30 mL of toluene
The volume of both Toluene and the solid is 55,00 mL and the volume of toluene is 30,30 mL. Thus, the volume of the solid is:
55,00 mL - 30,30 mL = 24,70 mL
Knowing both volume and weight it is possible to know the density thus:
32,50 g / 24,70 mL = 1,316 g/mL
I hope it helps!
