Question : Which of the following is the correct representation of the number of atoms?
Option 1: (given mass/molar mass) × Avogadro number
Option 2: (Avogadro number/given mass) × molar mass
Option 3: (molar mass/given mass) × Avogadro number
Option 4: (given mass/Avogadro number) × molar mass
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Correct Answer: (given mass/molar mass) × Avogadro number
Solution : The correct answer is (given mass/molar mass) × Avogadro number .
The correct representation of the number of atoms is:
(given mass/molar mass) × Avogadro number. The value of Avogadro's number is approximately 6.022×10 23 particles per mole.
This formula follows the concept of moles, where the given mass is divided by the molar mass to find the number of moles and then multiplied by Avogadro's number to find the number of atoms or molecules.
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