Co(NH3)4C1803]+ + 2H3O+ →1 [Co(NH3)5(H2O)]3+ + 2H2O + CO2 If the oxygen atoms of the coordinated carbonate were labeled with 180, where in the products the ? labeled oxygen will end up
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- [Co(H2O)6]2+ (aq) + 4 Cl-(aq )⇆ [CoCl4]2-(aq) + 6 H2O 3. Does the value of the equilibrium constant (K) for this reaction increase, decrease, or remain the same as the concentration of chloride increases? Explain your answer incorporating the definition of an equilibrium constant.Co(NH3)4C1803]+ + 2H3O+ →1.20 [Co(NH3)5(H2O)]3+ + 2H2O + CO2 If the oxygen atoms of the coordinated carbonate were labeled with 180, where in the products the labeled oxygen will end up * ?[Co(H2O)6]2+ (aq) + 4 Cl-(aq )⇆ [CoCl4]2-(aq) + 6 H2O Is this reaction endothermic or exothermic?
- COBALT COMPLEX: [CoCl4]2-(aq) + 6H2O(l) « [Co(H2O)6]2+(aq) + 4Cl-(aq) + Heat Blue Pink STEPS #- Solutions Observations 1-DISSOLVE COBALT COMPLEX PINK SOLUTION 2-SOLUTION PLUS HCl BLUE SOLUTION 3-ADD WATER PINK SOLUTION 4-HEAT SOLUTION BLUE SOLUTION According to the equilibrium equation, which ion(s) do you have when the solution dissolved? Explain how you know the identity of the ion(s) present. 2. Explain what happened when the HCl was added to the solution. 3. Explain what happened when the H2O was added to the solution. 4. Explain what happened when the solution was heated. Was the reaction exothermic or endothermic?[Co(H2O)6]2+ (aq) + 4 Cl-(aq )⇆ [CoCl4]2-(aq) + 6 H2O Explain why the addition of water changes the equilibrium position even though the concentration of water is essentially constant and normally not included in the equilibrium constant expression. What are two functions that water performs in this reaction?Based upon the equilibrium reaction shown, what will happen in each case and why? [Co(H2O)6]2+ + 4 Cl- ⇄[CoCl4]-2+ 6 H2O a.)2 M HCl is added to the solution. b.)DI water is added to the solution. c.)If the solution turned blue upon heating in a 80°C water bath. d.)If the solution turned Pink upon immersion into a 0° water bath.
- Which statement is true regarding the following reaction? cis-Λ-[Co(en)2Cl2] + OH− --> cis-[Co(en)2Cl(OH)] + Cl− Group of answer choices At high OH- concentrations, the product complex is a Δ isomer. This reaction does not actually take place - instead of en ligands, there must be NH3 ligands. At low OH- concentrations, the product complex is a Δ isomer. The first step of this reaction mechanism is the dissociation of Cl-.Consider the following reaction: [Cr(H2O)5(SCN)]2+ + Yn- --> [Cr(H2O)5Y](3-n)+ + SCN- Which statement is true if this reaction occurs via a dissociation mechanism? Group of answer choices Changing the incoming ligand, Yn-, will have a large effect on the rate constant. The first step of the mechanism is the addition of the Yn- ligand to form a 7-ccordinate intermediate, [Cr(H2O)5(SCN)Y](2-n)+ Changing the incoming ligand, Yn-, will have very little effect on the rate constant. It is impossible for this reaction to occur via a dissociation mechanism.4. a. An equilibrium exists in solution between [Co(NH3)6]³+ + 3 en = [Co(en)3]³+ + 6 NH3 Which side of the equilibrium is favored?
- 2) [Co(NH3)4CO:]* + 2H3O* → [Co(NH:)s(H20)] + 2H20 + CO2 If the oxygen atoms of the coordinated carbonate were to be labeled with "0, where in the products the labeled oxygen will end up? Answer:1. Write the oxidation and reduction half equations of this reaction. Co(NO3)2.6H2O + 4NH3(aq) + (NH4)2CO3 + ½ H2O2 → [Co(NH3)4CO3]NO3 + NH4NO3 + 6H2O + NH4OH 2. Ali synthesized an octahedral complex with the formula, [Co(NH3)4CO3]Cl. - Draw the structure of this complex. Name it.In spite of the high equilibrium constant (K = 1025) for the reaction given here, the reaction proceeds very slowly, reaching equilibrium only after several days at room temperature. [Co(NH3)6]3+ + 6 H3O* = [Co(H20)6]3+ + 6 NH,* The observation is consistent with: the activation energy for the forward reaction being low. [Co(NH3)6]3+ being unstable in strong acid. [Co(NH3)6]3+ being more labile than [Co(H2O)6]3+. the classification of [Co(NH3)6]3+ as an inert complex.