Question

A mixture of gases contains h2 and o2 gases in the ratio 1 is to 4 weight by weight what is the molar ratio of the two gases in the mixture

Answer 1

mass ratio →   H₂ :  O₂

                        1  :  4

so

mole ratio →  1/2  :  4/32   (dividing  given mass ratio with respective molar mass )

                 =     4  :  1  

hope u understoood