Which of the following anions forms a deep red complex with Fe3+ ? a. NO3- b....
Which of the following anions forms a deep red complex with Fe3+ ? a. NO3- b. SO42- c. SCN-
Homework Answers
The deep red colour is possible when Fe+3 is reacts with SCN- ions due to the formation of Fe(SCN)2+
Fe+3 + 2 SCN- ------------ Fe(SCN)2+.
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Which of the following anions forms a deep red complex with Fe3+
? a. NO3- b....
Iron thiocyanate (FeSCN2+) is a complex ion that appears orange-red in solution. Iron(III) (Fe3+) and thiocyanate...
Iron thiocyanate (FeSCN2+) is a complex ion that appears orange-red in solution. Iron(III) (Fe3+) and thiocyanate (SCN-) are both colorless in solution. FeSCN2+ (aq) --(equilibrium)-- Fe3+ (aq) + SCN- (aq) a) If you add Fe(NO3)3 to a solution of these ions at equilibrium, in which direction will the reaction run to reach a new equilibrium? b) Silver ions react with thiocyanate ions to form a white precipitate. If you add silver ions to a solution of these ions at equilibrium,...
of the following anions, which is the strongest base? A) I- B) CN- C) NO3- D)...
of the following anions, which is the strongest base? A) I- B) CN- C) NO3- D) Br-
please help! Question Which functional group of salicylic acid forms a complex with Fe3+ if a...
please help!
Question Which functional group of salicylic acid forms a complex with Fe3+ if a colored reaction is observed with the iron (III) chloride test? Write an equation for this reaction.
A 25.0 mL volume of 0.0200 M Fe(NO3)3 is mixed with 50.0 mL of 0.00200 M...
A 25.0 mL volume of 0.0200 M Fe(NO3)3 is mixed with 50.0 mL of 0.00200 M NaSCN and 25.0 mL of 0.100 HNO3. The blood-red FeSCN2+ ion forms and the equilibrium is established: Fe3+(aq) + SCN-(aq) <---> FeSCN2+(aq) The equilibrium concentration of FeSCN2+ ([FeSCN2+]) was measured spectrophotometrically and found to be 7.0 x 10-4 mol/L. To calculate the equilibrium constant (Kc) for thr equilibrium system, proceed through the following steps: A. Moles of Fe3+, initial B. Moles of SCN-, initial...
In aqueous solution the Pb2+ ion forms a complex with four chloride anions. Write the formation...
In aqueous solution the Pb2+ ion forms a complex with four chloride anions. Write the formation constant expression for the equilibrium between the hydrated metal ion and the aqueous complex. Under that, write the balanced chemical equation for the first step in the formation of the complex.
In aqueous solution the Ag+ ion forms a complex with two cyanide anions. Write the formation...
In aqueous solution the Ag+ ion forms a complex with two cyanide anions. Write the formation constant expression (Kf) for the equilibrium between the hydrated metal ion and the aqueous complex. Under that, write the balanced chemical equation for the first step in the formation of the complex.
In aqueous solution the Hg ion forms a complex with four iodide anions. Write the formation constant expression for the equilibrium between the hydrated metal ion and the aqueous complex. Under that,...
In aqueous solution the Hg ion forms a complex with four iodide anions. Write the formation constant expression for the equilibrium between the hydrated metal ion and the aqueous complex. Under that, write the balanced chemical equation for the first step in the formation of the complex. Write the First Step: First Step:
In aqueous solution the Hg ion forms a complex with four iodide anions. Write the formation constant expression for the equilibrium between the hydrated metal ion and...
2. The reaction Fe3+ (aq) + SCN (aq) → FeSCN2+ (aq) produces a dark red color...
2. The reaction Fe3+ (aq) + SCN (aq) → FeSCN2+ (aq) produces a dark red color resulting from the formation of FeSCN2+. a. How does the color change if you add more SCN to a solution at equilibrium? (lighter or darker) b. How does the color change if you remove Fe3+ by reacting it with fluoride ions? c. If a reaction proceeds forward when you heat it, and reverse when you cool it, the reaction is [endothermic exothermic).
From the following anions: Br-, CO32- Cl-, I-, NO3-, SO42-, list the ions that meet the...
From the following anions: Br-, CO32- Cl-, I-, NO3-, SO42-, list the ions that meet the following criteria. 1a) Is involved in an oxidation-reduction reaction as part of a confirmation reaction. 1b) Does not produce a precipitate in any classification or confirmatory reaction described in this experiment. Info about the experiment: This experiment is titled " The Chemistry and Qualitative Analysis of Anions" and there is information about acid-base reactions, hydrolysis reactions, oxidation-reduction reactions, disproportionation reactions, decomposition, precipitation, dissolution, ion...
With which of the following anions will the lithium ion form an insoluble salt? a) sulfate,...
With which of the following anions will the lithium ion form an insoluble salt? a) sulfate, SO42- b) carbonate, CO32- c) sulfate and carbonate d) chloride, Cl- e) none of the above
please help!
Question Which functional group of salicylic acid forms a complex with Fe3+ if a colored reaction is observed with the iron (III) chloride test? Write an equation for this reaction.
In aqueous solution the Hg ion forms a complex with four iodide anions. Write the formation constant expression for the equilibrium between the hydrated metal ion and the aqueous complex. Under that, write the balanced chemical equation for the first step in the formation of the complex. Write the First Step: First Step:
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2. The reaction Fe3+ (aq) + SCN (aq) → FeSCN2+ (aq) produces a dark red color resulting from the formation of FeSCN2+. a. How does the color change if you add more SCN to a solution at equilibrium? (lighter or darker) b. How does the color change if you remove Fe3+ by reacting it with fluoride ions? c. If a reaction proceeds forward when you heat it, and reverse when you cool it, the reaction is [endothermic exothermic).
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