Question

What is the amount of o2 liberated at stp by 30 volume 1 solution of h2 o2?

Answer 1

30 L is the amount of oxygen liberated at STP by 30 volume of 1 L solution of H₂O₂

• The volume rating system for hydrogen peroxide expressed the concentration in terms of the volume of oxygen produced on decomposition.
• So 1 mL of 10 volume peroxide would produce 10 mL of oxygen when completely decomposed.
• So 1 liter of 30 volume peroxide will produce 30 L of oxygen.