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How many atoms are there in a graphite pencil dot?
DylanEastmondgp2921
There are 6.02 x 10^23 molecules per mole of any substance: this is 0.6 trillion trillion molecules.
A mole of water is only 18 grams. A regular wood pencil weighs about half of that. There will be fewer molecules of wood but more atoms per molecule. But you are still talking a range of hundreds of billions of trillions of atoms (10^22) in an item the size of a pencil.
Wiki User
∙ 6y ago
Wiki User
∙ 13y agoAround 51,898,920,151,726,200,000,000 atom
For a calculation...
I didn't account for the wood content, only graphite.
General size of pencil had 2 mm diameter of graphite and 15 cm in length.
Graphite had density of 2.09 - 2.23 g/cm3
A graphite pencil then contain approximately 1.001 - 1.067 gram of graphite
Graphite is a form of carbon and had atomic weight of 12 g/mol
1 mol contain 6.0022141793 x 1023 atom
The graphite content in a pencil had around 5.02 - 5.36 x 1022 atom of carbon.
Average those two figures for the answer.
In addition
If account for the wood content of a pencil using very same technique. The wood is 0.6g/cm3 in density. The overall pencil with 6 mm diameter would contain 2.3 gram of wood.
Average molecule for wood can consider as 1 carbon per 2 hydrogen atom and it can account as 14 g/mol carbon for wood.
This give additional 9.89 x 1022 atom of carbon
Net answer become 1.51 x 1023 atom of carbon in a pencil account to everything.
Wiki User
∙ 9y agoYou need to know: the type of the material in the pencil and the mass of this material.
Wiki User
∙ 9y agoIf the mass of this graphite dot is 10 μg the number of atoms is 0,5.10(ex18).
Wiki User
∙ 14y agoi think iron
Wiki User
∙ 16y ago25 million
Wiki User
∙ 13y agocarbon
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