Question: the molecular formula of glucose is c6h12o6 calculate its molecular mass?
Answer: Glucose has six carbons, twelve hydrogen, and six oxygen atoms. Using the periodic table, the atomic weight of C, H, and O are obtained. So the molar mass of C6H12O6 is 72.06 g + 12.096 g + 96.00 g = 180.156 g or 180.16 g (right number of significant figures).