What is the empirical formula of ascorbic acid, given that the pseudoformula is C3.407 H4.53 O3.406?

To determine the empirical formula of ascorbic acid, we divide the lowest fraction with the other values. For this case, we divide everything with 3.406. We do as follows:

C = 3.407 / 3.406 = 1

H = 4.53 / 3.406 = 1.33

O = 3.406 / 3.406 = 1

So, you have CHO

Hope this answers the question. Have a nice day.