A 32.45-g sample of a solid is places in a flask. Toluene, in which the solid is insoluble, is added to the flask so that the total volume of solid and liquid together is 53.00 mL. The solid and toluene together weigh 58.36g. The density of toluene at the temperature of the experiment is 0.864 g/mL.

What is the density of the solid?

Question

A 32.45-g sample of a solid is places in a flask. Toluene, in which the solid is insoluble, is added to the flask so that the total volume of solid and liquid together is 53.00 mL. The solid and toluene together weigh 58.36g. The density of toluene at the temperature of the experiment is 0.864 g/mL.

What is the density of the solid?

anonymous · Answer

Here's what I've got. The toluene must have a mass of 58.36-32.45=25.91 g, right?

aaronq · Answer

yes, you can then use the density to find the volume it occupies.

aaronq · Answer

Subtract that you find from 53 mL.

anonymous · Answer

The volume of the toluene must be grams/density, right?

aaronq · Answer

yes

anonymous · Answer

So, mL=g/(g/mL)=g*mL/g=mL, yep, mL=25.91/0.864=29.99 mL, right?

anonymous · Answer

The toluene takes up a volume of 29.99 mL, so the remainder, 53.00-29.99=23.01, must be the solid.

anonymous · Answer

The solid's mass, 32.45, divided by its volume, 23.01, is its density.

anonymous · Answer

32.45/23.01=1.410!

anonymous · Answer

Is that the answer?

aaronq · Answer

assuming you didn't make any mistakes in the arithmetic, yes it is the answer

anonymous · Answer

Thanks! It was!

aaronq · Answer

no problem !