The density of any substance is measured as its mass per some unit of volume. Normal units are kilograms per cubic metre, grams per cetimetre or grams per millilitre. 8cm is a measure of length: it cannot be a measure of density.
Density = Mass/Volume = 5.6grams/20cm2 = 0.28 g/cm3 This is clearly a hollow piece of iron since the density of solid iron is 7.9 g/cm3
Density = mass / volume = 28.5 / 3.62 = 7.87 g / cu cm, iron or steel has that density.
The density of iron (at room temperature) is approx 7.87 grams/cm3. Therefore, volume of 63.6 grams = 8.08 cm3
8.268 grams per cubic centimetre! The total mass depends on the volume of course!
If you know the mass of an object, you can find the volume if you know the density. Since Density = mass/volume (D=M/V) , the volume is the mass divided by the density (V = M/D).The mass tells you the physical amount, as in number of atoms, molecules, or moles present, which on Earth means the effective weight. In order to find the volume, which is the space that the object or substance takes up, you need to know the density of the material, i.e.. how concentrated the mass is.Given a fixed mass, both volume and density can change with conditions, especially for gases.Density = mass/volume so that Volume = mass/densityExample:1000 grams of pure elemental IronSolid iron at standard temperature has a density of 7.87 g/cm3So 1000 grams/7.87 g/cm3 gives a volume of about 127 cm3(a kilogram of iron can make a cube about 5 cm on a side)
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Density = Mass/Volume = 5.6grams/20cm2 = 0.28 g/cm3 This is clearly a hollow piece of iron since the density of solid iron is 7.9 g/cm3
The wood is "lighter" (weighs less; has less mass) than the iron because of it's density. Iron has a greater density than wood, and density is defined as mass/volume, so having the same volume (size), the iron will have a greater mass.
Iron pyrite (FeS2) has a density of 4.8 to 5.0 grams per cm3. A piece of volume 40 cm3 would, therefore have a mass of volume*density = 192 to 200 grams.
The density is 7.8 grams per cm^3.
Density = Mass/Volume = 57.2g/11 cm3 = 5.2 gcm-3
The volume is 0,62 L or 6,2 dL.
Density can be found by the formula ρ=m/V where ρ=density (kg/m3 or g/cm3) m=mass (kg or g) V=volume (m3 or cm3) To find the density of iron, you must first know the mass of iron at a certain volume. You can do this by using laboratory apparatus such as a measuring cylinder and/or a displacement can to find the volume of a piece of iron. Then using an electronic balance, find the mass of the same piece of iron.
Since density is defined as mass divided by volume, the statement that the 100g piece of iron has twice the density as the 50g piece would only be true if they occupied the same volume. However, since iron is an element, it will not vary so widely in density in solid form. Thus, it is more than likely that they are different volumes with the same density, and only the mass of the first piece is twice the mass of the second.
Density = Mass/Volume D = 48/6 = 8 g/cm^3
You can find the volume of 500 grams of iron by using the formula for density and knowing iron's density. The density of iron is 7.85 grams per cubic centimeters and the formula for density is ggiven by mass divided by volume, or volume is equal to mass divided by density. The volume is 500 grams/ 7.85 grams per cubic centimeters, which is 63.69 cubic centimeters.
A "characteristic" is something that applies uniquely to a particular substance . A characteristic property helps you identify what the sample, or object, or substance is. Example to help make the point: A solid block of iron has the same density no matter how large or small it is. So, size (volume) cannot help you identify an unknown blob of solid iron, and a particular mass for the blob is of no help either. BUT, the change in mass as volume changes, or m/v, is a constant for the substance.Mass is not a characteristic of copper, because the mass of a big piece of copper is more than the mass of a small piece of copper.Volume is not a characteristic of gold, because the volume of a big piece of gold is more than the volume of a small piece of gold. Besides, the same amount of a gas can have a wide range of volume based on its pressure.Density is (mass) divided by (volume), so it doesn't matter whether you have a big piece of iron or a small piece, the quotient of its mass and volume is always the same number whenever it is iron.