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Synthetic pathways to produce the provided complex

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  1. Mar 23, 2017 #1
    • Please post this type of questions in HW section using the template.
    Question
    Describe the color changes that occur when ##NH_{3(aq)}## is gradually added, with stirring to ##[CuCl_4]^{2-}_{(aq)}## until the ##NH_{3(aq)}## is in excess.
    Identify the three compounds or ions responsible for the new colors.

    Now the marking scheme shows that somehow ##[Cu(H_2O)_6]^{2+}_{(aq)}##,##Cu(OH)_{2(aq)}## and ##[Cu(NH_3)_4(H_2O)_2]^{2+}_{(aq)}## gets produced.
    The only reaction I am taught concerning ##[CuCl_4]^{2-}_{(aq)}## and ##NH_{3(aq)}## is
    ##[CuCl_4]^{2-}_{(aq)}## + ##NH_{3(aq)}## (in excess) ----->##[Cu(NH_3)_4(H_2O)_2]^{2+}_{(aq)}##

    Can someone tell me a reaction pathway in which all these three ions are achieved?
     
    Last edited: Mar 23, 2017
  2. jcsd
  3. Mar 28, 2017 #2
    Thanks for the thread! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post? The more details the better.
     
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