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# Which statement is untrue Watch

1. Look at attachment:

So lets go through them:

A: the larger the log(Kc) the more positive the Kc value. Thus statement A is true

B: e.d.t.a has a higher Kc value so will displace 1,2-diaminoethane

C: this is just something we have to know. It is true

D: this is also true as all others are either monodentate/hexadentatde. This is true.

It would seem all answers are true. However, B is the answer. Why?
Attached Images

2. (Original post by ilovemath)
Look at attachment:

So lets go through them:

A: the larger the log(Kc) the more positive the Kc value. Thus statement A is true

B: e.d.t.a has a higher Kc value so will displace 1,2-diaminoethane

C: this is just something we have to know. It is true

D: this is also true as all others are either monodentate/hexadentatde. This is true.

It would seem all answers are true. However, B is the answer. Why?
They have very similar Kc values which suggests the stability of the complexes in about the same so edta would be unlikely to displace 1,2-diaminoethane.
3. What's bothering me is the en complex has only 1 ligand in that table...

so is that K value for one ligand or is it a typo and there should be there ligands
4. (Original post by EierVonSatan)
What's bothering me is the en complex has only 1 ligand in that table...

so is that K value for one ligand or is it a typo and there should be there ligands
I didn't even see that. I think it should be three as well.. maybe it's a typing error. :/
5. (Original post by EierVonSatan)
What's bothering me is the en complex has only 1 ligand in that table...

so is that K value for one ligand or is it a typo and there should be there ligands
typo probs
6. (Original post by NutterFrutter)
They have very similar Kc values which suggests the stability of the complexes in about the same so edta would be unlikely to displace 1,2-diaminoethane.
but it could...any way it was not a real exam so I shouldn't worry to much
7. this statement is untrue

Updated: May 11, 2012
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