1. Find the molar mass of sodium:
* The molar mass of sodium (Na) is approximately 22.99 g/mol.
2. Calculate the number of moles:
* Divide the given mass by the molar mass:
* Moles of sodium = 23 g / 22.99 g/mol = 1 mol
3. Use Avogadro's number:
* Avogadro's number tells us that there are 6.022 x 10^23 atoms in one mole of any substance.
4. Calculate the number of atoms:
* Multiply the number of moles by Avogadro's number:
* Number of sodium atoms = 1 mol * 6.022 x 10^23 atoms/mol = 6.022 x 10^23 atoms
Therefore, there are approximately 6.022 x 10^23 atoms in 23g of sodium.
