Answer :
0.785 moles of Na2O are required to react to produce 1.57 moles of NaOH.
The chemical reaction between Na2O and H2O to create NaOH has the following balanced chemical equation:
Na2O + H2O → 2 NaOH
This equation explains that 2 moles of NaOH are created for 1 mole of Na2O.
If we have 1.57 moles of NaOH, then 0.785 moles of Na2O must react with it in order to create it.
Here is the calculation:
Moles of Na2O = (Moles of NaOH) / (Moles of NaOH produced per mole of Na2O)
= 1.57 moles / 2 moles/mole
= 0.785 moles
Therefore, 0.785 moles of Na2O are required to react to produce 1.57 moles of NaOH.
To learn more about chemical reaction:
brainly.com/question/34137415
