Chapter 1 - Introduction and Review - Study Problems - Page 37: 1-33 a

Empirical formula: $C_3H_6O$

The process of finding the empirical formula for this question is shown in the picture. The general process is: 1) Divide the grams with the atomic mass of the element, to find the moles of the elements. 2) Then divide the moles by the lowest number of moles to find the number. 3) Put that number as the subscript of the element.