Difference between revisions of "Avogadro Constant"
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===About the Avogadro Constant=== | ===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 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 | + | : 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]]. |
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: 1 [[mole]] of an [[element]] contains '''6.02x10<sup>23</sup>''' [[atom]]s of that [[element]]. | : 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. | : 1 [[mole]] of a [[molecule]] contains '''6.02x10<sup>23</sup>''' [[molecule]]s. | ||
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===Extra Information=== | ===Extra Information=== | ||
{{#ev:youtube|https://www.youtube.com/watch?v=TEl4jeETVmg}} | {{#ev:youtube|https://www.youtube.com/watch?v=TEl4jeETVmg}} | ||
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:[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/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 ''] | :[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 ''] | ||
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| + | ====OCR==== | ||
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| + | :[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 ''] | ||
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| + | ==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. | ||
Latest revision as of 10:53, 22 May 2024
Contents
Key Stage 4
Meaning
The Avogadro Constant is the number of atoms in 12g of Carbon. 6.02x1023 atoms per mole.
About the Avogadro Constant
- The Avogadro Constant is used to state the number of atoms or molecules in a mole of a substance.
- The Avogadro Constant is normally written in standard form as 6.02x1023 = 602,000,000,000,000,000,000,000 correct to 3 Significant Figures.
- 1 mole of an element contains 6.02x1023 atoms of that element.
- 1 mole of a molecule contains 6.02x1023 molecules.
Extra Information
References
AQA
- Avogadro constant, page 106, GCSE Combined Science Trilogy; Chemistry, CGP, AQA
- Avogadro constant, page 112, GCSE Chemistry, CGP, AQA
- Avogadro constant, page 42, GCSE Chemistry; The Revision Guide, CGP, AQA
- Avogadro constant, page 65, GCSE Chemistry, Hodder, AQA
- Avogadro constant, pages 178-9, GCSE Combined Science Trilogy 1, Hodder, AQA
- Avogadro constant, pages 62-63, GCSE Chemistry; Third Edition, Oxford University Press, AQA
Edexcel
- Avogadro constant, page 220, GCSE Combined Science, Pearson Edexcel
- Avogadro constant, page 76, GCSE Chemistry, Pearson, Edexcel
- Avogadro’s constant, page 28, GCSE Chemistry; The Revision Guide, CGP, Edexcel
- Avogadro’s constant, page 91, GCSE Combined Science; The Revision Guide, CGP, Edexcel
- Avogadro’s constant, pages 85, 86, GCSE Chemistry, CGP, Edexcel
OCR
- Avogadro constant, page 97, Gateway GCSE Chemistry, Oxford, OCR
- 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 6.02x1023 atoms per mole.
About the Avogadro Constant
- The Avogadro constant is a fundamental constant in chemistry and physics.
- The Avogadro constant is used to calculate the number of particles in a given amount of substance.
- One mole of any substance contains Avogadro's number of particles.
- The value of the Avogadro constant is 6.02x1023 mol-1.
- It is used in determining the molar mass of substances.
- The Avogadro constant is essential for converting between atomic scale and macroscopic scale measurements.
- The Avogadro constant is named after the Italian scientist Amedeo Avogadro, who first proposed the concept.