1. Convert the mass of sodium to moles using its molar mass.
The molar mass of sodium (Na) is approximately 22.99 grams per mole.
Number of moles of Na = Mass of Na / Molar mass of Na
= 46.0 grams / 22.99 grams/mole
= 2.00 moles of Na
2. Use Avogadro's number to find the number of atoms in 2.00 moles of sodium.
Avogadro's number represents the number of atoms or molecules present in one mole of a substance. It is approximately 6.022 x 10^23.
Number of atoms = Number of moles x Avogadro's number
= 2.00 moles x 6.022 x 10^23 atoms/mole
= 1.204 x 10^24 atoms
Therefore, 46.0 grams of sodium contains approximately 1.204 x 10^24 sodium atoms.
