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- Define racemic mixture? And briefly explain the Racemic modification and its types?Assign reasons for the following :(i) Transition metals and many of their compounds act as good catalysts.(ii) Transition metals generally form coloured compounds.(f) Potassium permanganate (g) Sodium hypochlorite (h) Beryllium bicarbonate (1) Ammonium dichromate (G) Iron (II) chloride
- trans-Pt(py)2(Cl)2 reacts with PPh3 to form trans-Pt(py)2(Cl)(PPh3). This reaction proceeds through an intermediate with trigonal bipyramidal geometry around the Pt. What is the valence electron count of the intermediate?Why is carbon chemistry clearly complex?How many unpaired electrons are there in the high-spin state of Co2+ in an tetrahedral field?
- Ksp for Co(OH)2 is 5.92x10^-15bot 3. Iron(II) ion (Fe°*) reacts with thiocyanate ion (SCN¯) to form a red complex ion with the formula [FESCN]2+. The net ionic equation describing this reaction is given in Equation 10. eH MC () Fe+ (aq, It. yellow) + SCN (aq, colorless)=[FESCN]²+ (aq, red) 12+ (Eq. 10) A student studying this equilibrium begins with an equilibrium mixture that is light pink. (1) What change will the student observe when a solution containing Fe³+ ion is added to this mixture?6. Tron(11) ion salts, such as FeSO, 7H,O, react with the organic compound ortho-phenanthroline (phen) to form red coordination compounds with formulas such as Fe(phen),SO4. Such compounds have an analytical wavelength of 510 nm. (1) A standard solution containing Fe(phen),SO, was made by dissolving 0.0139 g of FeSO4 · H20, with a molar mass of 278.05 g mol-1 in 500.0 mL of water containing excess phen. The solution has a %T of 36.5% at 510 nm. A 500.0-mL solution with unknown Fe(phen),,SO4 concentration has a %T of 64.3% at 510 nm. What is the molar concentration of Fe(phen),SO4 in the unknown solution?
- The Kc = 5.6 x 108 for the reaction at 25.0 C: Ni2+ (aq) + 6 NH3 (aq) Ni(NH3),2* What is the AG° in J/mol?the mechanism for the formation of potassium tris(oxalato)ferrate(III) trihydrate, K3[Fe(ox)3].3H2O from the reaction between ferric nitrate nonahydrate and potassium oxalate monohydrate.If concentration of [CrO4 ] in Expt. 7 is found to be 6.7 x 105 M, what is the experimental Ksp of Ag,CrO4? a) 3.0 x 1013 b) 6.0 x 1013 c) 1.2 x 1012 d) 1.8 x 108 Ksp of Ag.CrO4 = [Ag]° [CrO,?] Ag,CrO4 2 Ag+(aq) + CrO,-(aq), moles, and concentration, of Ag+ are twice those of Cro Ksp of Ag.CrO, = [Ag"] [CrO,] = [2Cro.1°[CrO,] = [CrO.,*]