Asked by qp
What is the relationship between a mole and Avogadro’s number?
A mole is the mass of Avogadro’s number of particles of a substance.
A mole is the amount of a compound that has Avogadro’s number of carbon-12 atoms in it.
A mole contains Avogadro’s number of particles of a substance.
A mole is the amount of any substance that has the same mass as Avogadro’s number of carbon-12 atoms.
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Correct answer: "A mole contains Avogadro’s number of particles of a substance."
Explanation: By definition one mole is exactly 6.02214076×10^23 specified elementary entities (atoms, molecules, ions, etc.). Historically the mole was defined by carbon‑12, but the current SI definition is the number of entities.
Explanation: By definition one mole is exactly 6.02214076×10^23 specified elementary entities (atoms, molecules, ions, etc.). Historically the mole was defined by carbon‑12, but the current SI definition is the number of entities.
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