Question

Fructose has the same empirical formula as glucose. What is the molar mass of fructose’s empirical formula (in units of g/mol)?

Answer 1

Molar mass of fructose’s empirical formula

`180` g/ mol

Step-by-step explanation:

The molecular formula of glucose is
`C_6H_(12)O_6` . The empirical formula of glucose is
`(CH_2O)_6`

Like wise the molecular formula of fructose is
`C_6H_(12)O_6` . The empirical formula of fructose is
`(CH_2O)_6`

Empirical formula gives the proportionate mass of a chemical compound.

The molar mass of fructose is equal to the sum of individual masses of its constituting elements in a proportion as presented in empirical formula.

`12 g C + 2(1 g H) + 16 g O`

`= 30 (g)/(mol)`

`= 30 * 6 = 180` g.mol as there are 6 molecules of
`CH_2O` in fructose.