Question

Calculate the number of atoms in 9.2g of Na with complete solution

Answer 1

Answer:

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Answer 2

Answer:

we have 1 mole of Na = 23 gr = 1.602× 10*23 atoms

9.2 gr of Na = x atoms

by cross multiplication we get,

X=4× 1.602× 10*(23-1)

= 6.408× 10*22 atoms

therefore there are 6.408× 10*22atoms