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- Why is [Fe(OH2)6]³+ prepared in an acidic solution? A. It is a Bronsted acid in aqueous solution B. It is stabilized against reduction in acid C. It is not soluble in water at pH = 7.0 %3D O D. All of the choices[Fe(H2O)6]3+ (aq) + SCN1- ↔ Fe(H2O)5SCN]2+(aq) + heat yellow red For the above reaction, describe using Le Chatelier’s Principle what changes (color changes and shifts) would occur when each stress is applied to this equilibrium. Explain your answers. a) Add KSCN(aq) b) Decrease temperature c) Add AgNO3, which causes AgSCN to precipitate out.estion 1'of 13 Write a balanced chemical equationffor the reaction of [Co(H,O),]²+ with Cl¯. Be sure to include phase symbols. balanced chemical equation:
- Calculate the Co2+ equilibrium concentration when 0.100 mole of [Co(NH3)6](NO3)2 is added to a solution with 0.025 M NH3. Assume the volume is 1.00 L.8. How many geometrical and/or optical isomers do the following molecules have? Draw a sketch of each isomer and indicate the shape in addition to the types of isomers. a) Pt(NH3)2Br2 b) [Co(phen)2Cl₂]+Draw the molecular orbital diagram for [Ti(H2O)s]³+ with the electrons filled in the orbitals. Clearly label the bonding and anti-bonding orbitals.
- [Cu(NH3)4]2+ forms a blue solution. When concentrated HCl is added to this solution, what color will the solution change to?When orange solution containing Cr2O72–ion is treated with an alkali, a yellow solution is formed and when H+ions are added to yellow solution, an orange solution is obtained. Explain why does this happen?2. When a metal complex ion is formed in solution, what are the metal ion and ligands acting as? * O a) The ligand is a Lewis base, and the metal ion is its conjugate acid. O b) The metal ion is a Lewis acid, and the ligand is its conjugate base. c) The metal ion acts as a Lewis base, and the ligand acts as a Lewis acid d) The ligand is a Lewis base, and the metal ion is its conjugate acid.
- Given that the Kf for [Ni(H2O)5(NH3)]2+ is 501 and Ka for NH4+ is 2.0 x 10-5, what is the equilibrium constant for the following reaction: Ni2+(aq) + NH4+(aq) --> [Ni(H2O)5(NH3)]2+ + H+(aq) In a solution of 0.010 M Ni2+ and 0.010 M NH4+, will this reaction favor products or reactants at pH=1? pH=7? pH=12? how do you find the concentration of [Ni(H2O)5(NH3)]2+?Give the proper name for the compound [Co(NH3)4]Cl2Cobalt(II) complex ion solution: [Co(H2O)6]+2(aq) + 4Cl-(aq) [CoCl4]-2(aq) + 6H2O(l) Pink Blue 1). When silver nitrate is added the blue color becomes pink. Why is that ? 2. When heat is added , in which direction the equilibrium will shift ? Is this reaction exothermic or endothermic ? 3.What happens when the temperature is lowered in the ice bath ?