Question

an element forms two oxides consisting respectively 21.24% and 34.78% by weight of oxygen Dertermine the ratio of the valancies of the element in these two oxides

Answer 1

the ratio is 3:5 plz solve for it

Answer 2

@heena plzz help

Answer 3

i brb..

Answer 4

i brb..???

Answer 5

@Kryten plzz help!

Answer 6

@open_study1 sorry i have to go urgently if its not get solve ill see it but i think @JFraser will help u :)

Answer 7

anyone got this plz reply fast...

Answer 8

let the element be x with valencies y and z
so, the compounds are: \[X _{2}O _{y} and X _{2}O _{z}\]
the weight of oxygen in X2Oy is y times weight of oxygen i.e. YO and in X2OZ it's Z times O i.e. ZO
Now, the ratio YO:ZO =21.24:34.78
which gives Y:Z =3:5 approx

Answer 9

thanzzz