Solid KSCN was added to a(2.20x10^0) M Co2+ solution so that it was also initially (2.20x10^0) M SCN-. These ions then reacted to give the complex ion Co(SCN)2+, whose formation constant is 1.0x102. What is the concentration of Co2+(aq) at equilibrium? You may assume x to be small. Express your answer to three significant figures.

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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

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

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.…

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Q: For the aqueOuS [Ni(NH3)6] 2+ complex Kf= 5.50 x 10^8 at 25 °C. Suppose equal volumes of 0.0016 M…

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Q: Consider the insoluble compound silver bromide, AgBr. The silver ion also forms a complex with…

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Q: For the aqueous ; [Ni(CN)₁]²¯¯ complex K, = 2.00 × 10³¹ at 25 °C. Suppose equal volumes of 0.0086M…

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

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Q: AgBr has very low solubility in water. Then thiosulfate ion, S2O32-, is added to a solution…

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Q: Ferric ion reacts with potassium thiocyanate to form the complex ion FeSCN^2+. Calculate the…

A: Answer: Reaction between Ferric ion and thiocynate ion is shown below:…

Q: Fe(NO3)3 (0.00100 mol) and KSCN (0.200 mol) are added to water to make exactly 1 liter of solution.…

A: The ICE table can be drawn as follows-

Q: Consider the insoluble compound silver iodide , AgI . The silver ion also forms a complex with…

A: The answer of the following question is given below

Q: Sufficient sodium cyanide, NaCN, was added to 2.5x10^-2 M silver nitrate, AgNO3, to give a solution…

A: Given: Molarity of AgNO3 = 2.5×10-2 MMolarity of CN- ion = 0.193 MKf for Ag(CN)2- = 5.6×1018

Q: For the aqueous [Ag (CN)₂] complex K₁=1.26 × 10²¹ at 25 °C. Suppose equal volumes of 0.0022M AgNO3…

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Q: For the aqueous [Hgl, complex K,= 6.76 x 1029 at 25 °C. Suppose equal volumes of 0.0098 M Hg(NO,)…

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Q: 2. Given that KspNi(OH)2] = 5.50 x 10-16, Ksp[Mg(OH)2] = 8.9 x 10-12, and Ksp[Ca(OH)2] = 4.7 x 10-4,…

A: correct option  [c] Ni(OH)2⇌Ni+2 + 2OH- Ksp=[Ni+2]× [OH-]2 Given       Ksp=5.50×10-16Let      [Ni+2]…

Q: A solution is prepared such that the initial concentration of A2+ is 1.50×10-3 M and the initial…

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Q: Fe(NO3)3 (0.00100 mol) and KSCN (0.200 mol) are added to water to make exactly 1 liter of solution.…

A: The ICE table can be drawn as follows-

Q: Which of the following is the correct Kf expression for the formation of the complex ion…

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Q: For the aqueous [Ag (NH3)₂] complex K, = 1.12 × 10² at 25 °C. Suppose equal volumes of 0.0072 M…

A: Answer:When silver ion is added in a solution contains NH3, Ag+ ion forms a very stable complex…

Q: Silver ions form a complex ion in the presence of cyanide ions, according to the following equation:…

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

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Q: For the aqueous [Ag(CN)₂] complex K, = 1.26 × 10²1 at 25 °C. Suppose equal volumes of 0.0040 M AgNO3…

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Q: For the aqueous [Ag(CN)2]^-    complex Kf =3.0x10^20 at 25°C.Suppose equal volumes of 0.0068M AgNO3…

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Q: Solid KSCN was added to a 2.26 M Co²+ solution so that it was also initially 2.26 M SCN.These ions…

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Q: Cobalt(ll) chloride can form two complexes when dissolved in water [Co(H 2 O) 6 )^ 2 + (aq) which is…

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Q: The blue complex Cu(H, O);+ and the yellow complex CuCl exist in equilibrium. Cu(H,O)*(aq) + 4…

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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…

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Q: Consider the insoluble compound silver bromide , AgBr. The silver ion also forms a complex with…

A: The solubility reaction for AgBr is given by  AgBr(s) -----> Ag+ (aq) + Br- (aq)…

Q: Consider the insoluble compound silver iodide , AgI. The silver ion also forms a complex with…

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Q: A solution is prepared such that the initial concentration of A2+ is 1.50×10-3 Mand the initial…

A: Initial concentration of [A2+] = 1.50×10-3M  Initial concentration of X = 4.60×10-3M  Equilibrium…