A block of ironwood 8.5 cm long, 2.0 cm wide and 2.0 cm tall has a mass of 40.8 g. What is the density?
Will this wood float on water, which has density of 1.0 g/mL ?
You find the volume, which is length times width times height:
8.5 cm * 2.0 cm * 2.0 cm = 34 cm^3
A cubic centimeter (cm^3) is the same as a milliliter (mL), so the volume is 34 mL
Density equals mass divided by volume.
D = M/V = 40.8 g / 34 mL = 1.2 g/mL
The wood will not float in water because it has a greater density.
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