Chemistry
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mole concept, stoichiometry, basics

What is the mole concept and why is it important?

Many students know that 1 mole = 6.022×10236.022 × 10^{23}, but why is this number so important in chemistry?

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A mole represents a fixed number of particles — 6.022×10236.022 × 10^{23} atoms, ions, or molecules. It allows chemists to connect the microscopic world of atoms with the macroscopic world of grams and liters. Without the mole, chemical calculations like mass, volume, and number of particles would be impossible.
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