Hey there! Sign in to join this conversationNew here? Join for free
    • Thread Starter
    Offline

    0
    ReputationRep:
    K2CrO4 (aq) + BaCl2 (aq) --> BaCrO4 + 2KCl

    write the ionic equation of this please
    Offline

    18
    ReputationRep:
    (Original post by whatcaniputhere)
    K2CrO4 (aq) + BaCl2 (aq) --> BaCrO4 + 2KCl

    write the ionic equation of this please
    These are all ionic chemicals. Therefore in solution, they will dissociate into ions:

    K2CrO4 (aq) + BaCl2 (aq) ---> BaCrO4 (aq) + 2 KCl (aq)

    becomes...

    2 K+ (aq) + CrO42- (aq) + Ba2+ (aq) + 2 Cl- (aq) --> Ba2+ (aq) + CrO42- (aq) + 2 K+ (aq) + 2 Cl- (aq).

    Do you know what to do after that?
    Offline

    11
    ReputationRep:
    (Original post by whatcaniputhere)
    K2CrO4 (aq) + BaCl2 (aq) --> BaCrO4 + 2KCl

    write the ionic equation of this please
    Barium chromate is very insoluble in water(that is in aqueous solution, it is a solid).

    what the other poster meant to post should be

    2 K+ (aq) + CrO42- (aq) + Ba2+ (aq) + 2 Cl- (aq) --> BaCrO4 (s) + 2 K+ (aq) + 2 Cl- (aq).

    you can work the rest out.
    Offline

    11
    ReputationRep:
    (Original post by thegodofgod)
    These are all ionic chemicals. Therefore in solution, they will dissociate into ions:

    K2CrO4 (aq) + BaCl2 (aq) ---> BaCrO4 (aq) + 2 KCl (aq)

    becomes...

    2 K+ (aq) + CrO42- (aq) + Ba2+ (aq) + 2 Cl- (aq) --> Ba2+ (aq) + CrO42- (aq) + 2 K+ (aq) + 2 Cl- (aq).

    Do you know what to do after that?
    just thought i should remind you in your equation, all are spectator ions, lol!
    Offline

    18
    ReputationRep:
    (Original post by shengoc)
    just thought i should remind you in your equation, all are spectator ions, lol!
    I know - there's no redox involved
    Offline

    11
    ReputationRep:
    (Original post by thegodofgod)
    I know - there's no redox involved
    yeah, but as you might know, barium sulphate is insoluble in water, chromate being of similar size to sulphate, one could guess barium chromate is also quite insoluble.

    plus, i do know barium chromate is very insoluble in water.
 
 
 
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • Poll
    Has a teacher ever helped you cheat?
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • 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.