Calculate the number of atoms in 0.2 mole of sodium (Na).
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Calculate the number of atoms in 0.2 mole of sodium (Na).

Calculate the number of atoms in 0.2 mole of sodium (Na).
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Calculate the number of atoms in 0.2 mole of sodium (Na).

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SOLUTION —

We know that 1 mole of atoms contains 6.022 x 1023 atoms.

Now, 1 mole of sodium atoms = 6.022 x 1023 atoms.

So, 0.2 mole of sodium atoms = 6.022 x 1023 x 0.2 atoms

= 12.044 x 1022 atoms

Thus, 0.2 mole of Sodium element has 12.044 × 1022 Atoms in it.

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