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25-09-2020
Chemistry

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How many atoms in 19.6 grams of sodium? Full number please not the expression of ### times ###^##

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PiaDeveau PiaDeveau

02-10-2020

Answer:

Number of atoms = 5.1345 x 10²³

Explanation:

Given:

Mass of sodium = 19.6

Find:

Number of atoms

Computation:

We know that atomic mass of sodium is 22.98

So,

Number of atoms = [Mass of sodium/atomic mass of sodium]Avogadro's number

Number of atoms = [19.6 / 22.98]6.02 x 10²³

Number of atoms = 5.1345 x 10²³

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