9 gram of water contains 1 g of hydrogen and 8 grams of Oxygen
[tex]\\ \sf\longmapsto \dfrac{8}{9}=\dfrac{x}{36}[/tex]
[tex]\\ \sf\longmapsto 9x=36(8)[/tex]
[tex]\\ \sf\longmapsto x=\dfrac{36(8)}{9}[/tex]
[tex]\\ \sf\longmapsto x=4(8)=32[/tex]
- 36g of water contains 32g of oxygen
