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===About the Avogadro Constant===
: The '''Avogadro Constant''' is used to state the number of [[atom]]s or [[molecule]]s in a [[mole]] of a [[substance]].
: The '''Avogadro Constant''' is normally written in standard form.: as '''6.02x10<sup>23</sup>''' = '''602,000,000,000,000,000,000,000''' correct to 3 [[Significant Figures]].
: 1 [[mole]] of an [[element]] contains '''6.02x10<sup>23</sup>''' [[atom]]s of that [[element]].
: 1 [[mole]] of a [[molecule]] contains '''6.02x10<sup>23</sup>''' [[molecule]]s.
===Extra Information===
{{#ev:youtube|https://www.youtube.com/watch?v=TEl4jeETVmg}}
:[https://www.amazon.co.uk/gp/product/1782945741/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945741&linkCode=as2&tag=nrjc-21&linkId=30da4f2178da182547b62a7329d13b57 ''Avogadro’s constant, page 91, GCSE Combined Science; The Revision Guide, CGP, Edexcel '']
:[https://www.amazon.co.uk/gp/product/1782948147/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948147&linkCode=as2&tag=nrjc-21&linkId=f63dcd8345f4e49c717b39a228a36c7c ''Avogadro’s constant, pages 85, 86, GCSE Chemistry, CGP, Edexcel '']
====OCR====
:[https://www.amazon.co.uk/gp/product/0198359829/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359829&linkCode=as2&tag=nrjc-21&linkId=90e8d7b4f039d53035238fa0320fe00b ''Avogadro constant, page 97, Gateway GCSE Chemistry, Oxford, OCR '']
:[https://www.amazon.co.uk/gp/product/1782945679/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945679&linkCode=as2&tag=nrjc-21&linkId=a2db42f7b4bdf10cafaafa3bb9120940 ''Avogadro’s constant, page 38, GCSE Chemistry; The Revision Guide, CGP, OCR Gateway '']
==Key Stage 5==
===Meaning===
The [[Avogadro Constant]] is the number of atoms in 12 grams of carbon-12, approximately '''6.02x10<sup>23</sup>''' atoms per [[mole]].
===About the Avogadro Constant===
*The [[Avogadro Constant|Avogadro constant]] is a fundamental constant in chemistry and physics.
*The [[Avogadro Constant|Avogadro constant]] is used to calculate the number of [[particle]]s in a given amount of substance.
*One [[mole]] of any substance contains [[Avogadro Constant|Avogadro]]'s number of particles.
*The value of the [[Avogadro Constant|Avogadro constant]] is '''6.02x10<sup>23</sup>''' mol<sup>-1</sup>.
*It is used in determining the [[Molar Mass|molar mass]] of substances.
*The [[Avogadro Constant|Avogadro constant]] is essential for converting between [[atom]]ic scale and macroscopic scale measurements.
*The [[Avogadro Constant|Avogadro constant]] is named after the Italian scientist [[Amedeo Avogadro]], who first proposed the concept.