Question

how many moles of CaCO3 should be taken so to get some mole of Oxygen as the moles of hydrogen present in 5mole C6H12O6(glucose)​

Answer 1

Glucose = C6H12O6

Therefore 3O2 is present in one mole of glucose.

3moles of O2 in present in one mole of glucose.

Therefore 5moles of glucose has 3×5 moles of O2

That is 15 moles O2.

So, 30 moles of oxygen atoms are present in this.

=> 30×6.023×10²³= 1.807×10^25 atoms of oxygen.