Question

Find out number of moles of water formed when 4gms of Hydrogen and 32 gms of Oxygen combined together. What is the result when 5 gms of Hydrogen and 32 gms of Oxygen combined together?

Answer 1

When 4 g of hydrogen and 32g of oxygen are combined 36 g of water \(\frac{37}{18}\) = 2 mol 

5g H + 32 gO → 37g H₂O

No of moles in 3 7 g of water = \(\frac{37}{18}\) = 2.055 mol