Problem

Vitamin C (MW = 176.12 g/mol) is a compound containing C, H, and O found in citrus fruits. When a 1.000 g sample of Vitamin C is placed inside a combustion chamber and burned, the following information is obtained: 

Mass of CO2 absorber before combustion = 83.85 g    

Mass of CO2 absorber after combustion = 85.35 g                  

Mass of H2O absorber before combustion = 37.55 g

Mass of H2O absorber after combustion = 37.96 g

What is the molecular formula of Vitamin C?