Results are out! Find what you need...fast. Get quick advice or join the chat
Hey there Sign in to join this conversationNew here? Join for free

Need help with question

Announcements Posted on
    • Thread Starter
    • 1 follower
    Offline

    ReputationRep:
    Hello,
    Could anyone please help me with calculating the volume rating of hydrogen peroxide.
    I know that the equation of hydrogen peroxide is
    2H2O (aq) ---> 2H2O (l) + O2 (g)
    2 moles of hydrogen peroxide produces 1 mole of oxygen
    (''20 volume'' means 1 cm3 of peroxide solution produces 20cm3 oxygen)

    the question is:
    you have 5cm3 of H2O2 and a total of 200 cm3 of O2 is made, what is the volume rating of the hydrogen peroxide?

    Thank you
    • 1 follower
    Offline

    ReputationRep:
    40? I may be wrong, but if 5 cm3 makes 200, then 1 will make 40
    • Thread Starter
    • 1 follower
    Offline

    ReputationRep:
    thank you for replying, do you know if there is an equation for working out the volume rating

Reply

Submit reply

Register

Thanks for posting! You just need to create an account in order to submit the post
  1. this can't be left blank
    that username has been taken, please choose another Forgotten your password?
  2. this can't be left blank
    this email is already registered. Forgotten your password?
  3. this can't be left blank

    6 characters or longer with both numbers and letters is safer

  4. this can't be left empty
    your full birthday is required
  1. By joining you agree to our Ts and Cs, privacy policy and site rules

  2. Slide to join now Processing…

Updated: April 3, 2012
New on TSR

Find out what year 11 is like

Going into year 11? Students who did it last year share what to expect.

Article updates
Reputation gems:
You get these gems as you gain rep from other members for making good contributions and giving helpful advice.