Did I do this simple question correctly
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Did I do this simple question correctly

[From: ] [author: ] [Date: 11-09-15] [Hit: ]
.if its not correct try changing 4473.68 cm^3=4.47368 dm^3=4.......
What is the volume of 20.4 kg of a solid. The density of this solid is 4.56 g/cm^3

I converted the mass to be the same units as the density.
20.4kg times 1000g/1kg = 20,400 g
Then I did 20,400 g divided by 4.56g/cm^3
My answer for density was 4473.68 cm^3

Did I do it COMPLETELY right?

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What were you trying to find? The volume? You wrote "density".

If it's the volume, you are right. You could round it off to a whole number or 3 significant figures, I don't think it matters too much in Chemistry. :)

Edit: No, 3 s.f. would mean rounding off the first 3 numbers starting from a non-zero number. So in this case in would be 4470cm^3.

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density = mass / volume
volume = mass / density
check your answer

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yes, you are right...if it's not correct try changing 4473.68 cm^3=4.47368 dm^3=4.473 dm^3
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