Answer to Question #136493 in General Chemistry for Javier

Question

How many moles of H2 O form when 3.5 moles O2 reacts?

Answer 1

reaction between Oxygen and hydrogen to produce water is

H₂ +0.5 O₂ ----> H₂O

so 1/2 mole of oxygen produces 1 mole of water.

hence 3.5 moles of oxygen produces 7 moles of water.

hence answer is 7 Moles of H₂O