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August 22, 2014

Homework Help: Chemistry

Posted by ALISON on Tuesday, August 30, 2011 at 3:35pm.

The mass of the earth is known to be about 5.98 X10^24kg assume that it is approx. spherical with an average diameter of 1.276X10^7 METERS. from these data calculate the average density of the earth(g/cm^3) could the earth be made mostly of water (density=1.00g/cm^3), abundant elements like calcium silicate (density=3.27g/cm^3) or aluminum oxide(density=4.0g/cm^3)?

How do I explain this????What hypothesis would explain why the earth has a considerably higher density than any of these materials, which are abundant at the surface of the earth???

i got 2.88g/cm^3 for the earths density. is that right?

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