Homework Answers
Ans; (H2O)6Fe3+ gives H+ because these type of metal complexes are acidic in nature. as the positive charge increases the Lewis acidity of metal increases. The positive charge on metal i.e Fe3+ attracts electron density from the Oxygen atom of H2O molecule so the electrons in turn get pulled towards oxygen even more than usual. That leaves the hydrogen nuclei more exposed than normal. Now the hydrogen atoms attached to oxygen are sufficiently positively charged & pulled off in reaction involving water molecules in solution which act as Lewis base.
![[Fe(H20)6]3++420 7 [Fe (4,0),04734770€](http://img.homeworklib.com/questions/ea8a75a0-fe2a-11eb-8ba1-91b82f8a3cf3.png?x-oss-process=image/resize,w_560)
whereas
incase of hydrated anion such as (H2O)6Cl do not give H+ ion
because in this case the complex is not acidic enough. Anion act as
Lewis base so it doesn't pull electron density from oxygen atom
efficiently as compare to metal ions. So hydrogen attached to
oxygen atom is not positive enough to get loss in water
solution.
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explain the following statemen
6-43. Explain why hydrated metal ions such as (H20)6Fe3+ hydrolyze to give...
2nd part only the pH is correct. Metal ions in aqueous solutions are solvated, or hydrated,...
2nd part only the pH is correct.
Metal ions in aqueous solutions are solvated, or hydrated, by water molecules. Typically this primary hydration sphere is composed of six water molecules. The hydrated metal ion acts as a weak acid, undergoing a stepwise hydrolysis in which it donates an Htion from its water ligands to the surrounding free water molecules. Shown is the hydrolysis of Al(H,0) (pKA = 4.85) in water. Al(H,0)(aq) + H20(1) - 1,0+ (aq) + Al( HO), OH...
Among the three metal-NH3 complex ions, which one is most stable? Give its formula and explain....
Among the three metal-NH3 complex ions, which one is most stable? Give its formula and explain. The three complex ion choices are [Ni(NH3)6]^2+, [Co(NH3)6]^2+, and [Cu(NH3)4]^2+
g. Using your experimental results, explain why Zn(s) will reduce Cu?, Ag and H+ ions, but...
g. Using your experimental results, explain why Zn(s) will reduce Cu?, Ag and H+ ions, but Zn²+ ions are not reduced by Cu(s) or Ag(s) or H, (g). Reaction E (V) Explanation h. When a piece of silver metal is inserted into a solution of Cus or Agt will there be a reaction? Explain why or why not? Reaction E (V) Explanation
(a) Explain why [Fe(H20)6]5* is colored and (Nb(H20)6] is not (b) What kind of crystal field...
(a) Explain why [Fe(H20)6]5* is colored and (Nb(H20)6] is not (b) What kind of crystal field (Ao large or small) the NH3 ligands are creating it there are only 4 unpaired electrons in [Fe(H20)6]2* complex ion ? Explain
Give the coordination number of the central metal ion in the following complex ions. a. [Ni(en)2(NH3)2]2+...
Give the coordination number of the central metal ion in the following complex ions. a. [Ni(en)2(NH3)2]2+ b. [Fe(en)(ox)Cl2]- Please explain how you got them too? thanks
15 Which of the following is the reason why an aquaporin does not pass ions (such...
15 Which of the following is the reason why an aquaporin does not pass ions (such as Na+) through? A. The Nations are too small to pass through the pore rapidly enough B. The Nations are too large to pass through the narrow pore C. The Nations do not favorably interact with the wall of the pore and therefore cannot be dehydrated D. Two Asn residues in the channel prevent the passage of Na+ ions. E. A Na+ ion must...
2. The following question is mostly a review of General Chemistry. You may need to consult...
2. The following question is mostly a review of General Chemistry. You may need to consult your old chemistry texts or notes from other classes to refresh your memory on some of these things. If you aren't having much success with questions 1-3, at least do question 4, which doesn't really depend on your answer to 1-3. Consider the following balanced equation for the hydrolysis of hydrated metal ions of a. Write the equilibrium constant expression for this dissociation. (The...
Why is it answer a) ? with aluminum 43. Which one of the following represents the...
Why is it answer a) ?
with aluminum 43. Which one of the following represents the net ionic equation for the reaction of nitric acid w hydroxide? 43H' + Al(OH)s <-> Als+ + 3H20 (b) 3HNO3 + Al(OH)s AI(NO3) 3H20 (c) HNO3+ OH- NOs+ H20 (d) H+ + OH-H20 (e) 3NO3- +A13+ AI(NO3)3 UNO OU
(a) Explain why [Fe(H2O)6]5+ is colored and [Nb(H20)6]5+ is not. (b) What kind of crystal field...
(a) Explain why [Fe(H2O)6]5+ is colored and [Nb(H20)6]5+ is not. (b) What kind of crystal field (Ao large or small) the NH3 ligands are creating if there are only 4 unpaired electrons in [Fe(H20)6]2+ complex ion ? Explain
From the following list of metal ions and ligands, construct metal complexes with properties which match...
From the following list of metal ions and ligands, construct metal complexes with properties which match that described in each part of the question and provide a brief explanation. (Only one example is required for each part of the question, e.g. [Fe(H20)6]21). Metal ions Ligands (in order of increasing ligand field strength) [ < Br< <C1° <NO3 <OH <ox?- <H2O< Ti(IV), V(III), V(IV), Cr(II), Cr(III), Mn(II), NH3 <en <bpy < PPh3< CN=CO Mn(III), Mn(IV), Fe(II), Fe(III), Co(II), Co(III), en =...
2nd part only the pH is correct.
Metal ions in aqueous solutions are solvated, or hydrated, by water molecules. Typically this primary hydration sphere is composed of six water molecules. The hydrated metal ion acts as a weak acid, undergoing a stepwise hydrolysis in which it donates an Htion from its water ligands to the surrounding free water molecules. Shown is the hydrolysis of Al(H,0) (pKA = 4.85) in water. Al(H,0)(aq) + H20(1) - 1,0+ (aq) + Al( HO), OH...
g. Using your experimental results, explain why Zn(s) will reduce Cu?, Ag and H+ ions, but Zn²+ ions are not reduced by Cu(s) or Ag(s) or H, (g). Reaction E (V) Explanation h. When a piece of silver metal is inserted into a solution of Cus or Agt will there be a reaction? Explain why or why not? Reaction E (V) Explanation
(a) Explain why [Fe(H20)6]5* is colored and (Nb(H20)6] is not (b) What kind of crystal field (Ao large or small) the NH3 ligands are creating it there are only 4 unpaired electrons in [Fe(H20)6]2* complex ion ? Explain
15 Which of the following is the reason why an aquaporin does not pass ions (such as Na+) through? A. The Nations are too small to pass through the pore rapidly enough B. The Nations are too large to pass through the narrow pore C. The Nations do not favorably interact with the wall of the pore and therefore cannot be dehydrated D. Two Asn residues in the channel prevent the passage of Na+ ions. E. A Na+ ion must...
2. The following question is mostly a review of General Chemistry. You may need to consult your old chemistry texts or notes from other classes to refresh your memory on some of these things. If you aren't having much success with questions 1-3, at least do question 4, which doesn't really depend on your answer to 1-3. Consider the following balanced equation for the hydrolysis of hydrated metal ions of a. Write the equilibrium constant expression for this dissociation. (The...
Why is it answer a) ?
with aluminum 43. Which one of the following represents the net ionic equation for the reaction of nitric acid w hydroxide? 43H' + Al(OH)s <-> Als+ + 3H20 (b) 3HNO3 + Al(OH)s AI(NO3) 3H20 (c) HNO3+ OH- NOs+ H20 (d) H+ + OH-H20 (e) 3NO3- +A13+ AI(NO3)3 UNO OU
(a) Explain why [Fe(H2O)6]5+ is colored and [Nb(H20)6]5+ is not. (b) What kind of crystal field (Ao large or small) the NH3 ligands are creating if there are only 4 unpaired electrons in [Fe(H20)6]2+ complex ion ? Explain
From the following list of metal ions and ligands, construct metal complexes with properties which match that described in each part of the question and provide a brief explanation. (Only one example is required for each part of the question, e.g. [Fe(H20)6]21). Metal ions Ligands (in order of increasing ligand field strength) [ < Br< <C1° <NO3 <OH <ox?- <H2O< Ti(IV), V(III), V(IV), Cr(II), Cr(III), Mn(II), NH3 <en <bpy < PPh3< CN=CO Mn(III), Mn(IV), Fe(II), Fe(III), Co(II), Co(III), en =...
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