In the presence of CN", Fe3+ forms the complex ion Fe(CN)63-. The equilibrium concentrations of Fe3+ and Fe(CN)63- are 8.5 x 10-40 M and 1.4 x 10-3 M, respectively, in a 0.12 M KCN solution. Calculate the value for the overall formation constant of Fe(CN)63-. Fe3*(aq) + 6CN (aq) → Fe(CN)63- K=

Q: The Kf for the dicyanosilver complex ion, [Ag(CN)2]-, is 5.6 x 1018.  When solid NaCN is added to a…

A: Given [AgNO3] = 0.010 M [CN-] = 0.5 M Kf of [Ag(CN)2]- = 5.6*1018

Q: The fictitious complex M(SCN)2 can be produced from an aqueous equilibrium in which the M2+ ion is…

A: Since the reaction taking place will be  M2+ + 2 SCN- ----> M(SCN)2  hence from the above…

Q: Lead metal is added to 0.130 M Cr3+(aq). Pb(s) + 2Cr3+ (aq) ⇌ Pb2+ (aq) + 2Cr2+ (aq)…

A: Given: Initial concentration of Cr3+ = 0.130 M Equilibrium constant Kc = 3.2×10⁻10

Q: When AgCl(s) is dissolved in a solution of NH3, the complex ion Ag(NH3)2+ forms as shown in the…

A: we need to calculate Kf for Ag(NH3)2+

Q: Sufficient sodium cyanide,NaCN , was added to 1.5X10^-2  M  silver nitrate,AgNO3 , to give a…

A: Given: Molarity of AgNO3  = 1.5×10−2 M   Molarity of CN− ion = 0.229 M Kf for Ag(CN)2− = 5.6×1018

Q: 2+ In an aqueous chloride solution cobalt(II) exists in equilibrium with the complex ion CoC142.…

A: Step 1: As we see the product of the reaction is pink colour Cobalt ions , so pink colour is…

Q: One millimole of Ni(NO3)2 dissolves in 250.0 mL of a solution that is 0.500 M  in ammonia. The…

A: The balanced Chemical reaction for given numerical is The formation constant for the reaction is…

Q: What is the equilibrium molar concentration of Cu+ in a solution prepared by adding 0.1558 mol of…

A: The reaction is as follows Cu+(aq) +     2CN-(aq)       [Cu(CN)2]-(aq)

Q: 25.0 mL aqueous solution of 0.150 mol L-1 Co3+(aq) was prepared. To this solution, 0.0500 mol of…

A: The question is based on the concept of chemical equilibrium . we need to calculate equilibrium…

Q: Calculate the silver ion concentration, [Ag'], of a solution prepared by dissolving 1.00 g of AgNO3…

A: The objective of the question is to calculate the equilibrium concentration of .

Q: One millimole of Ni(NO3)2 dissolves in 240.0 mL of a solution that is 0.500 M in ammonia. The…

A: we need to calculate initial concentration of Ni(NO3)2  equilibrium concentration of Ni2+(aq )

Q: What is the equilibrium molar concentration of Cu+ in a solution prepared by adding 0.1558 mol of…

A:

Q: To 200.0 ml of a solution of Al(NO3)3 with concentration (1.000x10^-3) mol L-1, (3.0x10^2) ml of…

A: Step 1:Given information:Initial volume of Al(NO₃)₃ solution = 200 mL = 0.2 LConcentration of…

Q: Write the equilibrium reactions for the formation per step of the Fe complex (CN)6^3- from Fe^3(ac)…

A: Step 1 of complex formation: Fe3+(aq)+CN-(aq)⇔[Fe(CN)]2+(aq)…

Q: Which of the following is more likely to precipitate the hydorxide ion? (a) Cu(OH)2(s) = Cu2+(aq) +…

A: Actually, the molar solubility is the amount of solutes that can be dissolved in per liter of…

Q: In the presence of CN–, Fe3+ forms the complex ion Fe(CN)63–. The equilibrium concentrations of…

A:

Q: One millimole of Ni(NO3)2 dissolves in 230.0 mL of a solution that is 0.400 M  in ammonia. The…

A: Given, initial mole of Ni(NO3)2 = 1 milli mole Volume of solution = 230.0 mL Concentration of NH3 =…

Q: We have a blue colored solution of CuSO4 in a concentration of 0.1 M. What is the necessary…

A: Since initial moles of Cu2+ taken = moles of CuSO4 = concentration of CuSO4 X volume of solution =…

Q: (a) In the determination of chloride by the Mohr method, what will be the equilibrium concentration…

A: The objective of the question is to determine the equilibrium concentration of silver ions in a…

Q: Consider the reaction between Fe* and NCs ions. The equilibrium constant for this reaction is 620.4.…

A: Given is in a reaction between Fe+3 and NCS-, Kc = 620.4 Volume of Fe+3 = 10 mL molarity of Fe+3 =…

Q: Consider the following reaction:
   Ag+ (ag) + 2 NH3 (aq) = Ag(NH3)2+ (aq) Keq = 7.99   An…

A: Given reaction is an equilibrium reaction with Keq (equilibrium constant) = 7.99

Q: In an aqueous chloride solution cobalt(II) exists in equilibrium with the complex ion CoC14². Co²+…

A: We would use the given observation at low and high temperature to answer these questions.

Q: Calculate the concentration of free, uncomplexed Cu2+ ions in a solution that originally contains a…

A:

Q: For the aqueous [Fe(CN)6] complex K₁=1.00 × 10³5 at 25 °C. Suppose equal volumes of 0.0078M Fe(NO3),…

A:

Q: One millimole of Ni(NO3)2 dissolved in 250.0 mL of a solution that is 0.500 M  in ammonia. The…

A: The balanced Chemical reaction for given numerical is Ni2+ + 6NH3      [Ni(NH3)6]2+ The formation…

Q: If the molar solubility of PbCrO4 at 25 oC is 5.48e-07 mol/L, what is the Ksp at this temperature?…

A: Given,  a). If the molar solubility of PbCrO4 at 25 oC is 5.48e-07 mol/L, what is the Ksp at this…

Q: In an aqueous chloride solution cobalt(II) exists in equilibrium with the complex ion CoCl4².…

A: Given reaction is : CoCl42- (aq) <-----------> Co2+ (aq) + 4Cl- (aq)

Q: Choose the best answer below. Consider the following complex ion formation equilibrium and it's…

A: a) Addition of more cyanide ions increases the concentration of the reactant. According to Le…

Q: An equilibrium reaction between chromate ions, CrO4 2- (yellow), and H+ ions is established to…

A: Given that NaOH is added to dichromate ion solution

Q: In the presence of CN-, Fe3+ forms the complex ion Fe(CN)63-. The equilibrium concentrations of Fe3+…

A:

Q: You mix a 200.0-mL sample of a solution that is 1.5 X 10-³ M in Cu(NO3)2 with a 250.0-mL sample of a…

A:

Q: What is the approximate concentration of free Fe2+ ion at equilibrium when 1.90x102 mol iron(II)…

A: Given, Moles of Iron(ll) nitrate =1.90×10-2 mol Volume of solution = 1.00 L Concentration of CN-=…

Q: A solution contains 0.021 M Cl- and 0.017 M I-. A solution containing copper (I) ions is added to…

A: Since the compound which will have less Ksp value will precipitate first  This is because the…