Answer:
0.9moles of Zn are produced
Explanation:
Based on the reaction:
ZnO + 2Na → Na2O + Zn
1 mole of ZnO reacts with 2 moles of Na to produce 1 mole of Na2O and 1 mole of Zn
For 2 moles of sodium present, 1 mole of Zn is produced (The conversion factor is 2mol Na = 1mol Zn
If 1.8 moles of sodium are present:
1.8mol Na * (1mol Zn / 2mol Na) =
0.9moles of Zn are produced
