Density is theamount of issue in a given unit the volume. It deserve to be measure in gramsper cubic centimeter (g/cm3). It is a measure of just how tightlypacked the atoms of a substance are. When we say the ice is less densethan water, we mean that the water molecule are more tightly packed when theyare in the liquid state. The formula for determining density is
One always hears the muscle is denser the fat.This method that I deserve to work out, not lose weight and still lose inches offmy waist. This is due to the fact that 1 poundof muscle will take up less an are than 1 pound of fat.
Mass is generally measured in grams.Volume is typically measured in ml which is the same thing together cm3(or cubic centimeters the cc. 1 ml =1 cm3 = 1 cc)
The thickness of water is 1.00 g/ml.
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The thickness of part common elements are shown below:
Densities the selected elements
| element | density (g/cm3) | appearance |
| aluminum | 2.70 | silvery white, metallic |
| antimony | 6.68 | silvery white, metallic |
| cadmium | 8.64 | silvery white, metallic |
| carbon (graphite) | 2.25 | black, dull |
| chromium | 7.2 | steel gray, hard |
| cobalt | 8.9 | silvery gray, metallic |
| Copper Gold | 8.92 19.3 | reddish, metallic yellow, metallic |
| iron | 7.86 | silver, metallic |
| lead | 11.3 | silvery-bluish white, soft, metallic |
| manganese | 7.2 | gray pink, metallic |
| Nickel Platinum | 8.9 21.4 | silver, metallic silver, metallic |
| silicon | 2.32 | steel gray, crystalline |
| silver | 10.5 | silver, metallic |
| tin (gray) | 5.75 | gray |
| tin (white) | 7.28 | white metallic |
| Zinc | 7.14 | bluish white, metallic |
Sample problem:A solid has actually a fixed of 128 g. Itis a rectangular solid 1.0 cm by 2.0 cm by 3.0 cm.What is the thickness of the solid and also what steel is it?
Volume = length x width x height = 1cm x 2 cm x 3 centimeter = 6 cm3 or 6 ml.
D= M/V = 128 g / 6 ml=21.4 g/ml
The steel must be platinum!
One deserve to see the usefulness the densities for determiningtypes of steels at this gimpppa.org site: