username1393226
Badges: 2
Rep:
?
#1
Report Thread starter 5 years ago
#1
How do you determine the coordinate bond when you are given a question that simply states:
E.g. Solution A, is copper Sulphate and is blue.
HCl is added and solution B is formed and its yellow.

Q: Determine the formula for each formula causing the colour change
Q: Write an equation to show Solution A -> Solution B.

Anybody help please ?
0
reply
Ari Ben Canaan
Badges: 4
Rep:
?
#2
Report 5 years ago
#2
Simply dissolving Copper Sulphate in water will generate the hexaaqua complex :[Cu(H2O)6 ]2+. Adding HCl will effect ligand exchange and hence you get : [CuCl4 ] 2-.

I'm not sure how you would predict this without some analytical data...
1
reply
charco
Badges: 17
Rep:
?
#3
Report 5 years ago
#3
(Original post by T-GiuR)
How do you determine the coordinate bond when you are given a question that simply states:
E.g. Solution A, is copper Sulphate and is blue.
HCl is added and solution B is formed and its yellow.

Q: Determine the formula for each formula causing the colour change
Q: Write an equation to show Solution A -> Solution B.

Anybody help please ?
You are expected to learn that all the 1st row transition metal ions are hexaaqua in solution.
You are also expected to learn that, due to the large size of the chloride ions, the chloride ligands form tetrachloro complexes.
1
reply
username1393226
Badges: 2
Rep:
?
#4
Report Thread starter 5 years ago
#4
(Original post by charco)
You are expected to learn that all the 1st row transition metal ions are hexaaqua in solution.
You are also expected to learn that, due to the large size of the chloride ions, the chloride ligands form tetrachloro complexes.
In reference to the previous comment, how do you determine the overall charge ?
0
reply
charco
Badges: 17
Rep:
?
#5
Report 5 years ago
#5
(Original post by T-GiuR)
In reference to the previous comment, how do you determine the overall charge ?
The overall charge on a complex ion is the sum of the individual charges :yep:
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Back
to top
Latest
My Feed

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.

Personalise

University open days

  • Sheffield Hallam University
    Get into Teaching in South Yorkshire Undergraduate
    Wed, 26 Feb '20
  • The University of Law
    Solicitor Series: Assessing Trainee Skills – LPC, GDL and MA Law - London Moorgate campus Postgraduate
    Wed, 26 Feb '20
  • University of East Anglia
    PGCE Open day Postgraduate
    Sat, 29 Feb '20

Do you get study leave?

Yes- I like it (50)
64.1%
Yes- I don't like it (2)
2.56%
No- I want it (22)
28.21%
No- I don't want it (4)
5.13%

Watched Threads

View All
Latest
My Feed