Question

if 9.0 grams of water contains 1.0 grams of hydrogen what mass of oxygen is contained in 36 grams of water?​

Answer 1

9 gram of water contains 1 g of hydrogen and 8 grams of Oxygen

`\\ \sf\longmapsto (8)/(9)=(x)/(36)`

`\\ \sf\longmapsto 9x=36(8)`

`\\ \sf\longmapsto x=(36(8))/(9)`

`\\ \sf\longmapsto x=4(8)=32`

• 36g of water contains 32g of oxygen