Turn on thread page Beta
    • Thread Starter
    Offline

    9
    ReputationRep:
    KClO3 + H2SO4 ---> ClO2 + K2SO4 + KClO + H2O
    Can someone tell me how to balance this equation? I got oxidation number for K in KClO3 equals +7 and the K in KClO equals +3. So there is a reduction of -5. Other than that i'm lost
    Offline

    17
    ReputationRep:
    It is +5 in KClO3 to +4 in ClO2 and +1 in KClO, which is reduction in both cases - where's the oxidation?
    • Thread Starter
    Offline

    9
    ReputationRep:
    (Original post by Pigster)
    It is +5 in KClO3 to +4 in ClO2 and +1 in KClO, which is reduction in both cases - where's the oxidation?
    Why is it +5 in KClO3?
    Offline

    17
    ReputationRep:
    K is +1
    Each O is -2 (-6 total)
    You need Cl at +5 to make it add up to zero.
    • Thread Starter
    Offline

    9
    ReputationRep:
    (Original post by Pigster)
    K is +1
    Each O is -2 (-6 total)
    You need Cl at +5 to make it add up to zero.
    I couldn't find the oxidation.
    Offline

    17
    ReputationRep:
    (Original post by Snowie9)
    I couldn't find the oxidation.
    My point exactly. You need one! Have you looked down the back of the settee?

    Also, the only reason I can think of that an oxidising agent (KClO3 in this case) would produce two different reduced products (ClO2 and KClO in this case) is if the reducing agent (not present in this case) were to run out half way through the reaction.
 
 
 
Reply
Submit reply
Turn on thread page Beta
Updated: October 17, 2017

University open days

  • University of Exeter
    Undergraduate Open Days - Exeter Campus Undergraduate
    Wed, 24 Oct '18
  • University of Bradford
    Faculty of Health Studies Postgraduate
    Wed, 24 Oct '18
  • Northumbria University
    All faculties Undergraduate
    Wed, 24 Oct '18
Poll
Who do you think it's more helpful to talk about mental health with?

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Write a reply...
Reply
Hide
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.