To calculate the number of sodium molecules in 0.5 moles of sodium, we can use Avogadro’s number, which is approximately 6.022 × 10²³ particles per mole.
Now, we can perform the calculation:
Number of sodium molecules = Number of moles × Avogadro’s number
Substituting the values:
Number of sodium molecules = 0.5 moles × 6.022 × 10²³ molecules/mole
Number of sodium molecules = 3.011 × 10²³ molecules
Therefore, in 0.5 mole of sodium, there are approximately 3.011 × 10²³ sodium molecules.