Homework Help: Chemisty

Posted by love on Tuesday, January 17, 2012 at 11:18pm.

you have 100.0-mL graduated cylinder containing 50.0 mL of water. you drop a 124-g piece of brass (density =8.56 g/cm^3) into water. to what height does the water rise in the graduated cylinder

Chemisty - DrBob222, Tuesday, January 17, 2012 at 11:25pm
mass = volume x density
124g = volume x 8.56
V = ?
The brass will displace its volume so the water will rise from 50.0 mL to 50.0+ V.
Chemisty - love, Tuesday, January 17, 2012 at 11:29pm
so whats the V
Chemisty - love, Tuesday, January 17, 2012 at 11:33pm
we are looking for =cm^3
Chemisty - DrBob222, Tuesday, January 17, 2012 at 11:36pm
I substituted the numbers into mass = volume x density. All you need to do is to solve for volume (in mL which is the same as cc).
Chemisty - love, Tuesday, January 17, 2012 at 11:38pm
so now would i do this 124g/8.56 and whatever i get i add it to 50.0
Chemisty - DrBob222, Tuesday, January 17, 2012 at 11:39pm
Yes.

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