If Avogadro's number is changed from to , it would change: — Mole Concept and Some Basic Concepts of Chemistry Chemistry Question
Question
If Avogadro's number $N_A$ is changed from $6.022 \times 10^{23}$ to $6.022 \times 10^{20}$, it would change:
Answer: A
💡 Solution & Explanation
Changing $N_A$ changes the definition of "one mole". The absolute mass of one atom (determined by physics) remains constant. Consequently, the mass of $10^{20}$ atoms (the "new" mole) is different from the mass of $10^{23}$ atoms. The gram unit is independent of the mole.
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