Question

find the number of atoms in 5 mole sodium

Answer 1

23 atoms...

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Answer 2

Answer:

The number of atoms present in 5-mole sodium is 3.0115 × 10²⁴ atoms.

Explanation:

Given,

The number of moles of sodium atom (n) is 5.

To find,

The number of atoms present in 5 moles of a sodium atom.

Calculation,

We know that one mole of sodium contains an avagadro number of particles.

i.e. Nₐ = 6.023 × 10²³ atoms

Now if there are such 5 moles of sodium then the number of atoms present is:

5 × Nₐ = 5 × 6.023 × 10²³ atoms

           = 3.0115 × 10²⁴ atoms.

Therefore, the number of atoms present in 5-mole sodium is 3.0115 × 10²⁴ atoms.

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