Question

If one mole of sodium atom weighs 23g,what is the mass of one atom of sodium?

Answer 1

1 mole of any atom contains =
6.022 x 10^23
Mass of 1 mole of Sodium = 23 g
mass of 1 Atom = 23/(6.022 x 10^23)
= 3.81932912653 x 10^-23 grams

Answer 2

Mass of one atom of Sodium is $3.8193 \times 10^2^3 grams$.

Explanation:

• Usually, the mass of the element concerning their moles are calculated by using the mass numbers of the respective elements.

• The mass the moles of the elements are calculated directly with the help of their respective Mass numbers.

• When coming to the mass of atoms of the elements, we will calculate it by dividing the product of the number of moles and mass number of the respective element by the Avogadro's number. That is$6.022\times10^2^3.$

      Mass of 1 mole of Sodium = 23 g

      Mass of 1 Atom = $\frac{23}{6.022 \times 10^{23}}$

      = $3.8193 \times 10^2^3 grams$

Learn more about Avogadro's number

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