In the complex (ethylenediaminetriacetato)thiocyanatocobrltate(III), [Co(ed3a)SCN]^-, is the thiocyanate more likely to be bound to the cobalt(III)...
In the complex (ethylenediaminetriacetato)thiocyanatocobrltate(III), [Co(ed3a)SCN]^-, is the thiocyanate more likely to be bound to the cobalt(III) ion through the nitrogen or through the sulfur? Briefly explain.
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In the complex
(ethylenediaminetriacetato)thiocyanatocobrltate(III),
[Co(ed3a)SCN]^-, is the thiocyanate more likely to be bound to the
cobalt(III)...
The reaction of cobalt(II) nitrate and potassium thiocyanate produces a coloured complex, [Co(SCN)4]2-(aq). The initial concentrations...
The
reaction of cobalt(II) nitrate and potassium thiocyanate produces a
coloured complex, [Co(SCN)4]2-(aq). The initial concentrations of
the reactants after mixing (before any reaction) were 0.250 mol/L
Co(NO3)2(aq) and 0.500 mol/L KSCN (aq). After 20 minutes, the
absorbance of the solution was 0.825. The complex, [Co(SCN)4]2-, is
the only absorbing species (ε b = 9.29 (mol/L)-1). Determine the
concentration of Co2+ at equilibrium.
The reaction of cobalt(II) nitrate and potassium thiocyanate produces a coloured complex, Co(SCN).J(aq). The initial concentrations of...
The reaction of cobalt(II) nitrate and potassium thiocyanate produces a coloured complex, [Co(SCN)4]2-(aq). The initial concentrations...
The reaction of cobalt(II) nitrate and potassium thiocyanate produces a coloured complex, [Co(SCN)4]2-(aq). The initial concentrations of the reactants after mixing (before any reaction) were 0.250 mol/L Co(NO3)2(aq) and 0.500 mol/L KSCN (aq). After 20 minutes, the absorbance of the solution was 0.825. The complex, [Co(SCN)4]2-, is the only absorbing species (ε b = 9.29 (mol/L)-1). Determine the concentration of Co2+ at equilibrium.
Question 5: The cation, Co2+, is able to form a complex ion, [Co(SCN)4] 2–, with the...
Question 5: The cation, Co2+, is able to form a complex ion, [Co(SCN)4] 2–, with the thiocyanate anion, SCN–. (a) Write the chemical equation for the (a) Write the chemical equation for the formation of this complex ion with the corresponding expression for the formation constant, Kf, and (b) Given Kf for [Co(SCN)4] 2– = 1 x103, explain how having SCN– in solution would affect the solubility of Co(OH)2 (Ksp for Co(OH)2 = 1.3 x 10–15).
The following data were taken to determine the equilibrium constant of the Iron(III)-Thiocyanate Complex Ion:...
The following data were taken to determine the equilibrium constant of the Iron(III)-Thiocyanate Complex Ion: Tube .00200 M KSCN (ml) .00200 M Fe(NO3)3 (ml) Absorbance 2 8 2 .480 4 5 5 .720 6 2 8 .448 The product of eb = 6120 L/mol. Determine the [Fe(SCN] in tube 2 Determine what the concentration of the Iron(III) in tube 2 would be if none of it reacted. Determine what the concentration of the thiocyanate ion in tube 2 would...
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,...
Consider the compound Co(ONH)(SCN. Cobalt in this case is +2, ammonia and water are neutral, and...
Consider the compound Co(ONH)(SCN. Cobalt in this case is +2, ammonia and water are neutral, and each thiocyanate is -1 Draw the structure of this compound, placing each pair of the same ligand in a cis configuration (i.e. NHj is cis to NHs, SCN is cis to SCN, etc.) and attaching SCN to Co through the S. a. Draw a linkage isomer of your structure from part a. (This is a type of constitutional, or structural, isomer.) b. Draw the...
In this experiment, we will be studying the reaction of the iron(III) ion with the thiocyanate...
In this experiment, we will be studying the reaction of the iron(III) ion with the thiocyanate ion to form the red-colored complex ion pentaaquathiocyanatoiron(III), [Fe(H20)s(SCN)]?". As we will learn later, the Fetion in water is actually better represented as a complex ion with 6 water molecules attached to the central iron, [Fe(H20)] (aq). The SCN ion replaces one of the water molecules attached to the Fe" in the following reaction. [Fe(H2O).] (aq) + SCN (aq) [Fe(H2O)(SCN)]2(aq) + H2O(1) AH° (-)...
2. If the reaction between iron(III) ion and thiocyanate ion yielded an equilibrium concentration of 0.30...
2. If the reaction between iron(III) ion and thiocyanate ion yielded an equilibrium concentration of 0.30 M for each of these ions, what is the equilibrium concentration of the red iron(III)-thiocyanate complex? (Hint: The equilibrium constant for the reaction is in the Background section.) Show your work 3. In the reaction below, NH3(g) + H2O(1) - NH; +H30+ the equilibrium constant is 10-34. Is this reaction likely to take place? Explain your answer. iron(III) and thiocyanate ions, the equilibrium expression...
Can't figure out the concentration of the complex of solns. 10, 11, 12, 13, & 14. Modern...
Can't figure out the concentration of the complex of
solns. 10, 11, 12, 13, & 14.
Modern Experimental Chemistry Chemistry 153 The Iron(III) Thiocyanate Complex Purpose of the Experiment To determine the chemical formula of a complex ion and measure its formation equilibrium constant Equipment Spectro Vis spectrophotometer and LabQuest, cuvette, 25-mL buret (3), ring stand, buret clamp (2), 50-mL beaker (3), small plastic beakers Reagents SCN, as KSCN, 0.00200 M solution Fe; as Fe(NO), 0.00200 M solution and a...
In this step, you add xSCN to oneof the our escoi y a. If your solution has Fe", s te portions fr...
second photo is for your reference. thanks!
In this step, you add xSCN to oneof the our escoi y a. If your solution has Fe", s te portions from Step 12A. ,what change should you expect to observe? b. Write a balanced chemical equation for the reaction between Fe" and KSCH. equation Step 13 In this step, you first add Naf to one of the four decantate portions NH&SCN in ethanol. from Step 12A; then, you add a. If your...
The
reaction of cobalt(II) nitrate and potassium thiocyanate produces a
coloured complex, [Co(SCN)4]2-(aq). The initial concentrations of
the reactants after mixing (before any reaction) were 0.250 mol/L
Co(NO3)2(aq) and 0.500 mol/L KSCN (aq). After 20 minutes, the
absorbance of the solution was 0.825. The complex, [Co(SCN)4]2-, is
the only absorbing species (ε b = 9.29 (mol/L)-1). Determine the
concentration of Co2+ at equilibrium.
The reaction of cobalt(II) nitrate and potassium thiocyanate produces a coloured complex, Co(SCN).J(aq). The initial concentrations of...
Consider the compound Co(ONH)(SCN. Cobalt in this case is +2, ammonia and water are neutral, and each thiocyanate is -1 Draw the structure of this compound, placing each pair of the same ligand in a cis configuration (i.e. NHj is cis to NHs, SCN is cis to SCN, etc.) and attaching SCN to Co through the S. a. Draw a linkage isomer of your structure from part a. (This is a type of constitutional, or structural, isomer.) b. Draw the...
In this experiment, we will be studying the reaction of the iron(III) ion with the thiocyanate ion to form the red-colored complex ion pentaaquathiocyanatoiron(III), [Fe(H20)s(SCN)]?". As we will learn later, the Fetion in water is actually better represented as a complex ion with 6 water molecules attached to the central iron, [Fe(H20)] (aq). The SCN ion replaces one of the water molecules attached to the Fe" in the following reaction. [Fe(H2O).] (aq) + SCN (aq) [Fe(H2O)(SCN)]2(aq) + H2O(1) AH° (-)...
2. If the reaction between iron(III) ion and thiocyanate ion yielded an equilibrium concentration of 0.30 M for each of these ions, what is the equilibrium concentration of the red iron(III)-thiocyanate complex? (Hint: The equilibrium constant for the reaction is in the Background section.) Show your work 3. In the reaction below, NH3(g) + H2O(1) - NH; +H30+ the equilibrium constant is 10-34. Is this reaction likely to take place? Explain your answer. iron(III) and thiocyanate ions, the equilibrium expression...
Can't figure out the concentration of the complex of
solns. 10, 11, 12, 13, & 14.
Modern Experimental Chemistry Chemistry 153 The Iron(III) Thiocyanate Complex Purpose of the Experiment To determine the chemical formula of a complex ion and measure its formation equilibrium constant Equipment Spectro Vis spectrophotometer and LabQuest, cuvette, 25-mL buret (3), ring stand, buret clamp (2), 50-mL beaker (3), small plastic beakers Reagents SCN, as KSCN, 0.00200 M solution Fe; as Fe(NO), 0.00200 M solution and a...
second photo is for your reference. thanks!
In this step, you add xSCN to oneof the our escoi y a. If your solution has Fe", s te portions from Step 12A. ,what change should you expect to observe? b. Write a balanced chemical equation for the reaction between Fe" and KSCH. equation Step 13 In this step, you first add Naf to one of the four decantate portions NH&SCN in ethanol. from Step 12A; then, you add a. If your...
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