Answer:
There is an extra O2 molecule left over
Explanation:
A: C₆H₁₂O₆ + 6H₂O + 6O₂
6CO₂ + 12H₂O = C₆H₁₂O₆ + 6H₂O + 6O₂
A molecular formula represents the exact number of atoms present for each element in the compound.
For carbon atom:
=
( as molar mass of carbon is 12 g/mol)
Now, 6 carbon atoms are present and rest are hydrogen atoms i.e. 6
Thus, formula becomes
(
Now, check for unsaturation:
Degree of unsaturation = 
Substitute the value of x and y,
Degree of unsaturation = 
= 
=
implies one ring and three double bonds.
Thus, formula comes out to be
i.e. benzene ring.
Answer:
The answer should be 40.3044 g/mol