Wiki User
∙ 11y agoWant this question answered?
Be notified when an answer is posted
This density is 0,8 g/cm3.
The volume should be 200 cm3, not cm2. Density = Mass/Volume = 120g /200 cm3 = 0.6 g/cm3
The volume of the piece of wood is (10 x 5 x 3) = 150 cubic cm. In order to find its density, you also have to know its mass. When you have that, divide it by 150 cm3, and the answer is the density.
d=m/v d=(25g)/(5cm3 ) d=5g/cm3
Volume = mass/volume = 500g/10cm3 = 50g/cm3
Density = mass/volume = 75g/1500 cm3 = 1/200 g/cm3 = 0.050 g/cm3That value is half of common balsa wood density (there are other woods that are less dense but your example is rater extreme)
25/29.4 = 0.85 grams/cm3
This density is 0,8 g/cm3.
Assuming the wood has a volume of 200 cm3 and not 200 cm as stated, its density is 120 g/200 cm3 =120/200 g/cm3 = 0.6 g/cm3
The volume should be 200 cm3, not cm2. Density = Mass/Volume = 120g /200 cm3 = 0.6 g/cm3
Volume cannot be 29.4 cm since that is a measure of a length, not volume. Assuming that you meant 29.4 cm3, the density is mass/volume = 25.0 g / 29.4 cm3 = 0.850 grams per cubic centimetre (to 3 dp).
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 volume of the piece of wood is (10 x 5 x 3) = 150 cubic cm. In order to find its density, you also have to know its mass. When you have that, divide it by 150 cm3, and the answer is the density.
d=m/v d=(25g)/(5cm3 ) d=5g/cm3
density = mass ÷ volume = 600 g ÷ 30 cm3 = 20 g/cm3
57g/125cm3 = .456g/cm3.
The density is 2,01 g/cm3 because the density is ratio between the mass and volume.