Question

calculate the mass of water obtained by completely oxidising 80g of H2O​

Answer 1

We Have Given 80g Of Each Hydrogen And Oxygen . We Need 640g Oxygen For 80g Hydrogen To Make 720g Water , But We Only Have 80g Of Oxygen So In This Reaction Oxygen(O2) Will Act As A Limiting Reagent . Hence , 80g Oxygen(O2) Forms 90g Water(H2O).

Answer 2

Explanation:

We Have Given 80g Of Each Hydrogen And Oxygen . We Need 640g Oxygen For 80g Hydrogen To Make 720g Water , But We Only Have 80g Of Oxygen So In This Reaction Oxygen(O2) Will Act As A Limiting Reagent . Hence , 80g Oxygen(O2) Forms 90g Water(H2O).