1. Balance the Chemical Equation:
The given equation is already balanced:
4Na + O₂ → 2Na₂O
2. Convert Grams of Sodium to Moles:
* The molar mass of sodium (Na) is 22.99 g/mol.
* Divide the given mass of sodium (46 g) by its molar mass:
46 g Na / 22.99 g/mol = 2 mol Na
3. Determine the Mole Ratio from the Balanced Equation:
* The balanced equation shows a 4:2 mole ratio between sodium (Na) and sodium oxide (Na₂O). This means for every 4 moles of Na, you get 2 moles of Na₂O.
4. Calculate the Moles of Sodium Oxide:
* Use the mole ratio to find the moles of Na₂O produced:
2 mol Na * (2 mol Na₂O / 4 mol Na) = 1 mol Na₂O
5. Convert Moles of Sodium Oxide to Grams:
* The molar mass of sodium oxide (Na₂O) is 61.98 g/mol.
* Multiply the moles of Na₂O by its molar mass:
1 mol Na₂O * 61.98 g/mol = 61.98 grams of Na₂O
Therefore, 61.98 grams of sodium oxide will be formed.