Calculate by (a)% weight and (b) %mole each of the elements present in sugar

Explanation:

Molecular mass of sugar = : = 432 g/mol

Atomic mass of carbon atom = 12 g/mol

Atomic mass of hydrogen atom = 1 g/mol

Atomic mass of oxygen atom = 16 g/mol

a) Percentage of an element in a compound:

Percentage of carbon by weight in :

Percentage of hydrogen by weight in :

Percentage of oxygen by weight in :

b) Percentage of mole each of the elements present in sugar:

=

In mole of sugar we have 12 moles of carbon atom , 22 moles of hydrogen atoms and 11 moles of oxygen atoms.

Percentage of carbon by mole in :

Percentage of hydrogen by mole in :

Percentage of oxygen by mole in :

the answer to this question is 3.