In 58.2 grams of Na there is 1.51 x 10^24 atoms.
<h3>Mole calculation</h3>
To calculate the amount of atoms present in a mass sample, it is necessary to have knowledge of the molar mass of the element and Avogadro's constant, used in such a way that:
Now, with the value of the number of moles, just calculate the number of atoms present, so that:
So, in 58.2 grams of Na there is 1.51 x 10^24 atoms.
Learn more about mole calculation in: brainly.com/question/2845237