of the following metals would you expect to have more than one oxidation state?
ID: 1044116 • Letter: O
Question
of the following metals would you expect to have more than one oxidation state? Explain your answer. ietalw (ii) K O V (iii) Mn (iv) Mn nts) (a) For each of the following complexes draw and label the cis mers. If the complex cannot exist as cis and trans i (i) [ZnCl2(NH3)] "p cannot ex (ii) [Pt(H2O)2(COh]2. (b) Draw the erystal field energy level diagram for each of the following complexes. Indicacte st as cis and trans isomers, indicate so. and trans the number of unpaired electrons in each complex. [Fe(CO)d] (iii) [Nick]2. (iv) (iii)H20)12. (tetrahedral) 4. (10 points) (a) Write the expression for Kip of the following compounds: 6) Ag:CrO (ii) Mgs(PO4)2 (b) Calculate the solubility (in mol/L) of Ag.CrO, in pure water, if the Kup-2.0 x 101 (c) Calculate the Ksp for Fe(OH); in pure water, if the concentration of [OH] = 6.4 x 10-3 M ? 5. (11 points) Calculate the standard electrode potential (E"), for each of the following reactions. Indicate whether each reaction is spontaneous or non-spontaneous under standard state conditions. ..? Cd2+ (aq) + Zn') (i) Zn2+ (aq) + Cd(s) (b) Balance the following redox reaction that takes place in acidie solution: ? MnO2+ CIO..Explanation / Answer
(c)
Both Vanadium (V) and mangenese (Mn) are transition metals and we are well familiar with the fact that transition metals are famous for possessing more than one stable oxidation state.
Vanadium (V) exhibits 4 oxidation states which are +5, +4, +3, +2
Mangenese (Mn) exhibits oxidation states like +2, +3, +4, +6, +7
While as Potassium (K) exhibits only +1 oxidation state
Hence V and Mn are the correct options.
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