what is the molecular weight of sucrose
For sucrose (table sugar) we have the molecular formula C12H22O11 and the molar mass would be Molar mass of sucrose = 12x12.011 g + 22x31.008 g + 11x15.999g = 342.3 g Or, we would say that the molar mass of sucrose = 342.3 g/mol (i.e., a mole of sucrose molecules has a mass of 342.3 g).olecular compounds consist of a large collection of molecules. The molar mass (or molecular weight) of a molecular compound is defined in the following way: