Question

What is the percentages of Carbon, Hydrogen and oxygen in C6H12O6

Answer 1

First calculate the Ar of the compound.. ( Ar of C6H12O6 is 180)
Then divide the At of the required element by 180 and multiply by 100...

 so, for carbon 12 * 6 = 72 (THERE ARE 6 CARBON ATOM)
  
                            (72/180) * 100 =40%
    ITS THE SAME FOR THE OTHER 2 ELEMENT