Question

how many moles of sodium hydroxide would be produced from the reaction of 2.25 sodium

Answer 1

Start by writing down the balanced chemical equation. Can you do that?

Answer 2

2Na + 2H2O => 2NaOH + H2

Answer 3

Yes. Now, I htink you're missing something here: You have 2.25 sodium of WHAT? Is it grams, mols, atoms, molecules?

Answer 4

moles

Answer 5

2.25 mols of Sodium. Now, you're going to follow this process: \(\sf \color{}{2.25~mol~Na \times \frac{2~mol~NaOH}{2~mol~Na}}\)
as you know, it is a 1:1 ratio, so mol of Na = mol of NaOH.