Question

How much water can be obtained from 2gms of hydrogen and 2gms of oxygen by the reaction? 2H​2 + O2 --> 2H2O What is the limiting reagent? Calculate the amount of reactant that will be left behind.

Answer 1

Explanation:

2H^2+ O^2→2H^2O

No. of moles of hydrogen =2 moles

No. of moles of oxygen =2 moles

So, 1 mole of O^2 is left behind.

So, H^2 is completed in the reaction.

So, H^2 is limiting reagent.