Mass = Density x Volume Density = Mass ÷ Volume Volume = Mass ÷ Density
To find the density of a pencil, multiply the lengh by the width by the height.
The three equations commonly used to solve density problems are: Density = mass/volume Mass = density x volume Volume = mass/density
No, graphite is not magnetic.
No, graphite is not radioactive.
The main body of the pencil is made from soft wood which is naturally boyant, the pencil 'lead' is not lead at all but a much lighter substance called graphite. Your pencil is just not heavy enough to sink.
The volume of graphite is dependent on its mass and density. You can calculate it only if you know the sample's mass and density. The same goes for any other substance or object.
diamond
Graphite is less dense than diamond, due to the differences in crystal structure.
density = mass / volume
Graphite has a density of 2.09-2.23 grams/cubic centimeter. Therefore, a cubic foot of graphite weighs on average 134.2 pounds.
density = mass / volume Solving for mass: mass = density x volume Solving for volume: volume = mass / density
For experimental calculation: Mass the graphite sample with a scale (make sure to take into account the mass of whatever is holding the graphite sample - either zero the scale with the beaker/holder before adding the sample or subtract the mass of the beaker/holder from the total mass). Measure volume by measuring water displacement when graphite sample is added to a measured amount of water. Density = (Mass) / (Volume)
Get your life together and solve it.
The density of pure carbon varies depending on the form it is in. The density of diamond, a form of pure carbon, is around 3.5 g/cm³, while the density of graphite, another form of pure carbon, is around 2.2 g/cm³.
D=m/v
You might double check your question. Graphite is a carbon compound with a density estimated between 2.09–2.25 g/cc, and thus it has higher density than water and will sink. Graffiti is typically paint, but it can also include surface scratches and etc. Without better specification it would be hard to specify a density. However, dry paint may have a density of 3-4 g/cc which is also higher than water.
Exploded graphite, also known as expanded graphite, is a form of graphite that has been processed to increase its volume by heating it at high temperatures. This process creates a highly porous material with low density and high surface area, which makes it useful for applications such as thermal management, energy storage, and lubrication.