Posted by Alex on Sunday, September 1, 2013 at 11:19am.
the mass of cylinder one is 1.35 times the mass of cylinder two, and the volume of cylinder one is 0.792 times the volume of cylinder two. If the density of cylinder one is 2.70 g/cm3 what is the density of cylinder two?
THIS QUESTION HAS ME GOING CRAZY!!

Chemistry  Steve, Sunday, September 1, 2013 at 1:08pm
density is mass/volume.
So, twice the mass, twice the density.
twice the volume, half the density. So, for cylinder 2, we have
(1/1.35) / (1/.792) * 2.70 = 1.584

Chemistry  DrBob222, Sunday, September 1, 2013 at 1:17pm
d1 = m1/v2 = 2.70 g/cc
m1 = 1.35*m2 so
m2 = m1/1.35
V1 = 0.792*v2 so
v2 = v1/0.792
d2 = m2/v2
d2 = (m1/1.35)/( v1/0.792)
d2 = m1/1.35 x 0.792/v1 but
m1/v1 = 2.70
then d2 = 2.70 x (0.792/1.35) = ?
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