The number **6.023 × 10²³** is known as **Avogadro's number** (or Avogadro's constant). It represents the number of atoms, ions, or molecules contained in one mole of a substance. This is a fundamental constant in chemistry, used to convert between atomic mass units and grams, and it plays a crucial role in understanding the relationships between macroscopic and microscopic quantities.

### Additional Information:
- **Symbol**: Avogadro's number is often denoted by the symbol \( N_A \).
- **Units**: The units of Avogadro's number are typically expressed in entities per mole (mol\(^{-1}\)).
- **Application**: Avogadro's number is used in stoichiometry to calculate the number of particles (atoms, molecules, ions, etc.) in a given amount of substance.

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### Related Questions:
1. What is the historical significance of Avogadro's number?
2. How is Avogadro's number used in chemistry calculations?
3. Can you explain the relationship between moles and molar mass?
4. What is the difference between Avogadro's number and the gas constant?
5. How is Avogadro's number determined experimentally?

### Tip:
Remember that **Avogadro's number** is crucial for converting between atomic-scale quantities and amounts of substances we can measure in the laboratory, such as grams.

Explore the concept of Avogadro's number (6.023 × 10²³), a fundamental constant in chemistry. Learn how it's used to calculate the number of atoms, molecules, or ions in a substance, crucial for stoichiometry and understanding molecular mass. This guide is perfect for high school and undergraduate students.

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