Question

Question #84d78

Answer 1

You've answered your own question, it's `"NaO"` `(1:1)`

Explanation:

Sodium peroxide is actually `"Na"_2"O"_2`, the simplest integer ratio of the two atoms (`"Na"` and `"O"`) is `1:1`.

This means that your empirical formula is `"NaO"`.