Hello everyone,
Please help with my problems
A question is a wood waste generally consists of 43% of cellulose(C6H10O5), 35% of hemicellulose(C5H10O5) and 22% of lignin(C31H34O11) and the molecule mass of C is 12g/mole, O is 16 g/mole and H is 1g/mole as we all know.
So what is the chemical formula for wood?
My working is :
No of mole of carbon in cellulose is 12*6/162 =0.44
No of mole of hydrogen in cellulose is 10/162=0.0617
No of mole of oxygen in cellulose is 16*5/162=0.493
No of mole of carbon in hemicellulose is 12*5/150 =0.4
No of mole of hydrogen in hemicellulose is 10/150=0.067
No of mole of oxygen in hemicellulose is 16*5/150=0.533
No of mole of carbon in lignin is 12*31/582=0.639
No of mole of hydrogen in lignin is 34/582=0.0584
No of mole of oxygen in lignin is 16*11/582=0.302
So I calculate the number of moles of each element in different compounds,but I don't know how to link with the percentage given and what is it related to the chemical formula of wood
?
thanks