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.
Density = Mass/Volume = 62.8/40 = 1.57 g/cm3.
density = mass/volume = 2g/40cm3 = 0.05g/cm3
Density = Mass/Volume = 57.2g/11 cm3 = 5.2 gcm-3
Density = Mass/Volume so the density is 120/40 grams per cm3 = 3 grams per cubic cm.
The nugget of gold has a volume of 2.6 cm3, and the nugget of pyrite has a volume of 10 cm3.
-- Get a pure piece of it. The size of the piece doesn't matter. -- Measure the mass of the piece. -- Measure the volume of the piece. -- The density of the substance is mass of the piece/volume of the piece.
Pyrite has a density of 4.8-5g/cm3 mass = density x volume = (4.8-5)g/cm3 x 10 cm3 = 48 to 50 grams.
Volume = mass/volume = 500g/10cm3 = 50g/cm3
Density = Mass/Volume = 25.0/28.7 = 0.871 units of mass per units of volume.
Divide mass by volume to get density
what are the volume of piece of chalk
That depends on how much cork you have. If you have a large piece, then it will have more volume and more mass. If you only have a tiny piece, then the volume and the mass will both be very small. The volume and the mass will always change together like that, in the same direction. The only thing you can always be sure of is that no matter what size piece of cork you have, the grams of mass will always be about 0.2 times the volume in cubic centimeters.