if 2.5 moles of hcl are completely reacted in the reaction above how many moles of water can be produced

Question

The reaction above is 4 HCl (g) + O2 (g)> 2H2O (l) + 2 Cl2(g)

Answer 1

We see from the balanced equation that 4 moles of HCl produces 2 moles of H₂O. The ratio is 2:1. Therefore, 2.5 moles of HCl will produce 1.25 moles of H₂O ( a ratio of 2:1).