In: Chemistry
1) Consider the insoluble compound cobalt(II)
carbonate , CoCO3. The
cobalt(II) ion also forms a complex with
ammonia . Write a balanced net ionic equation to
show why the solubility of CoCO3(s)
increases in the presence of ammonia and calculate
the equilibrium constant for this reaction.
For Co(NH3)62+,
Kf = 1.3×105. Use the
pull-down boxes to specify states such as (aq) or (s).
Knet =
2) Consider the insoluble compound nickel(II) carbonate, NiCO3. The nickel ion also forms a complex with cyanide ions. Write a balanced net ionic equation to show why the solubility of NiCO3(s) increases in the presence of cyanide ions and calculate the equilibrium constant for this reaction.
For Ni(CN)42-(aq), Kf = 2.0×1031. Use the pull-down boxes to specify states such as (aq) or (s).
Knet =
3) Consider the insoluble compound zinc
sulfide, ZnS. The zinc
ion also forms a complex with hydroxide
ions. Write a balanced net ionic equation to show
why the solubility of ZnS(s) increases in the
presence of hydroxide ions and
calculate the equilibrium constant for this reaction.
For Zn(OH)42-, Kf
= 4.6×1017. Use the pull-down boxes to
specify states such as (aq) or (s).
Knet =
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