Question

C2H5Oh find the ratio by mass

Answer 1

Total mass of compound 



(assuming one mole)
                                      = (2*12)+(1*5)+16+1
                                      = 24+5+16+1
                                      = 46 g 

Now, required ratio = Mass of Carbon : Mass of Hydrogen : Mass Of Oxygen
                               = 24 : 6 : 16




Simplifying the ratio, we get:





The ratio of the combining elements by mass in the compound C_{2}H_{5}OHC​2​​H​5​​OH = 12 : 3 : 8.

Answer 2

ratio of the mass is 12:3:8