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. | ||
| + | |||
===Extra Information=== | ===Extra Information=== | ||
{{#ev:youtube|https://www.youtube.com/watch?v=TEl4jeETVmg}} | {{#ev:youtube|https://www.youtube.com/watch?v=TEl4jeETVmg}} | ||
Revision as of 19:53, 19 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 6.02 x 10^23 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 6.02214076 x 10^23 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.