January 12, 2025, 02:04:49 PM
Forum Rules: Read This Before Posting


Topic: Coodrination compound equation  (Read 2091 times)

0 Members and 1 Guest are viewing this topic.

Offline matthewescalona

  • Very New Member
  • *
  • Posts: 1
  • Mole Snacks: +0/-0
Coodrination compound equation
« on: April 24, 2013, 08:57:29 PM »
Hello,
Could you guys help me with these coordination compound equations
Under the assumption that the dichlorosilver ion is formed

Is it right to split this into two equations
AgNO3(aq) + HCl(aq) -> AgCl(s) + HNO3(aq)
AgCl(s) + HCl (aq) -> [AgCl2]- (aq or s?) + H+(aq)

Then I am having trouble figuring out what occurs after the addition of water

[AgCl2]- + H2O(l) -> ???

Much appreciated. 

Online Hunter2

  • Sr. Member
  • *****
  • Posts: 2330
  • Mole Snacks: +191/-51
  • Gender: Male
  • Vena Lausa moris pax drux bis totis
Re: Coodrination compound equation
« Reply #1 on: April 25, 2013, 01:06:16 AM »
I dont think this will happen, what you described. This takes place Ag + Cl- => AgCl (s). It precipitates. There is no [AgCl2]- existing. And if then [AgCl2]- => AgCl + Cl- in aqueous solution.

Offline AWK

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 7976
  • Mole Snacks: +555/-93
  • Gender: Male
Re: Coodrination compound equation
« Reply #2 on: April 25, 2013, 02:46:05 AM »
In concentrated chloride solution this complex can be formed. Stronger complex is formed with bromide, the strongest with iodide - so strong that elemental silver dissolves in concentrated HI with vigorous hydrogen production (+ HAgI2).
AWK

Offline Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 27897
  • Mole Snacks: +1816/-412
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
Re: Coodrination compound equation
« Reply #3 on: April 25, 2013, 03:04:10 AM »
According to tables:

[tex]\frac {[AgCl_2^-]}{[Ag^+][Cl^-]^2} = 10^{5.25}[/tex]
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info

Sponsored Links