chem
posted by laura .
If a cube with edges of 1.000 cm weighs 25.68 g, what would the mass of a cube
of the same material with sides 2.63 cm in length be?

Use cube 1 to determine the density of the material. density = mass/volume. You have the mass and you can calculate the volume.
Now, using the density and the volume of cube 2, determine the mass of cube 2.
Post your work if you get stuck. 
Here is my work, but the answer is incorrect.
D = M/V
D = 25.68 g/1.000 cm
D = 25.68 g/cm
That is for cube 1.
Mass = Density * Volume
Mass = 25.68 g/cm * 2.63 cm
Mass = 67.5384 g
This answer is incorrect. What did I do wrong?
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