Posted by **B.o.B** on Monday, November 8, 2010 at 7:54pm.

the following procedure may be used to determine the density of a granular material. A sample of a granular material weighing 4.35 grams is placed in a 15 mL flask and then completely filled with benzene (liquid) the density of which is .879g/cc. The granular material and benzene together weigh 17.33 grams. What is the density of the granular material? (IT doesn't dissolve in benzene)

what formulas would i use for this?

- chem -
**DrBob222**, Monday, November 8, 2010 at 8:28pm
mass unknown = 4.35 grams.

density = mass/volume. All of this information must be manipulated to provide a volume of the unknown.

IF the flask has a volume of 15 mL (and most flasks are NOT calibrated at all--a graduated cylinder would be better), then mass benzene is 17.33-4.35 so the volume of the benzene used to fill the flask is 12.98/0.879 = ?? That is the volume of the benzene; the difference between that and 15 is the volume occupied by the unknown. Substitute that volume into the secopnd line of this post to calculate density of the unknown.

- chem -
**FETTY GUWOP**, Thursday, April 7, 2016 at 8:10pm
WRONG, FIRST EAT ME OUT

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