Question

calculate the (w/v)%strength of 10v h2o2 aqueous solution

Answer 1

10v H₂O₂ means that 1L of this will give  10L of o₂ at STP

decomposition of  2H₂O₂⇒  2H₂O+ O₂

                                   68g⇒             22.4Ltr at STP

from the equation

22.4ltr of o₂ at STP iss obtained from H₂O₂=68g

10L of o₂is obtained from H₂O₂=(68/22.4)10

                                                    =30.357