Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Copper Nitrate plus water

  1. Feb 6, 2005 #1
    Does Copper(I) Nitrate plus water { Cu(NO)3)2 (aq) + H20 } yeild Cu(NO3)2 3H20? (unbalanced)

    From what I've been told, it could equal Cu(H2O)6^+2(aq) but I don't see the NO3 anywhere.
     
  2. jcsd
  3. Feb 6, 2005 #2

    dextercioby

    User Avatar
    Science Advisor
    Homework Helper

    Do you see anything devious in the underlined part...?

    What is that...??

    Daniel.
     
  4. Feb 6, 2005 #3
    Devious? Uh, Copper(I) has a postive charge, the anion NO3 has a negative charge; so it really must be Copper(II), to balance the molecule. Okay. Now you add water, h2o so all these elements have to show up on the product side. Since Cu(NO3)2 is balanced I have to ask myself if 3H2O is balanced. H is +, so 6+ goes with O which is 2-, 6-. So it looks pretty balanced.

    I'll read ahead here. Water is is an extremely weak electrolyte. And ions dissolve in water well so it looks possible. What am I missing here?
     
  5. Feb 6, 2005 #4

    dextercioby

    User Avatar
    Science Advisor
    Homework Helper

    How would the chemical bonds be realized in
    [tex] Cu_{2}(NO_{3})_{2} [/tex]

    compared to the regular
    [tex] CuNO_{3} [/tex]

    ??


    Daniel.
     
  6. Feb 6, 2005 #5
    Metal+nonmetal = ion; must be charge neutral

    [tex] Cu_{2}(NO_{3})_{2}; (NO_{3})_{2} [/tex] has charge of -1, so that's -2 overall, and since we have two atoms of Cu, it must be normal copper with a charge of -1.

    I'm not sure "how the bond would be realized"; by charge forces :)?
     
  7. Feb 6, 2005 #6

    dextercioby

    User Avatar
    Science Advisor
    Homework Helper

    BETWEEN WHOM??[itex] CuNO_{3} [/itex] is ELECTRICALLY NEUTRAL... :wink:

    Daniel.
     
  8. Feb 6, 2005 #7
    I guess it would have be a molecular bond of some kind. I profess ignorance as I'm just reading ahead for class.
     
  9. Feb 6, 2005 #8

    dextercioby

    User Avatar
    Science Advisor
    Homework Helper

    I strongly doubt it.I would advise you to use the Cu(I) nitrate,viz.[itex] CuNO_{3} [/itex] :smile:

    Daniel.
     
  10. Feb 6, 2005 #9
    okay wait I don't have a choice of what kind of copper nitrate I can use. [tex]Cu(NO_3)_2_(aq_) + H_2O[/tex] is all i get. I just wanted to know what kind of product it would make. Thanks for your elucidation though
     
  11. Feb 6, 2005 #10

    dextercioby

    User Avatar
    Science Advisor
    Homework Helper

    Well [itex] Cu(NO_{3})_{2} \ _{aq.} [/itex] would mean Cu (II),right...?And why would the problem speak about Cu(I)??Is there some redox that i cannot/don't see??? :confused:

    Daniel.
     
  12. Feb 6, 2005 #11

    Gokul43201

    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    The complex you get is the copper (II) hexaquo complex.

    [tex] Cu(NO_3)_2 + 6H_2O \longrightarrow Cu(H_2O)_6^{2+} + 2NO_3^- [/tex]
     
  13. Feb 6, 2005 #12

    dextercioby

    User Avatar
    Science Advisor
    Homework Helper

    Thanks,Gokul.I knew a clear mind would settle it. :wink:

    So it was Copper (II) all the time... :rolleyes:

    Daniel.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Copper Nitrate plus water
  1. Polarity of Nitrate (Replies: 4)

Loading...