If a sample of pure sodium has a mass of 8.2 grams and sodium has an average atomic mass of 22.99 g/mol, how many sodium atoms are there in the sample?

There are of sodium.

Explanation:

Mass of sodium = 8.2 g

Molar mass of sodium = 22.99 g/mol

Moles of sodium =

1 mole =

Number of sodium atoms in 0.3567 moles = N

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