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- 5 0.0030 0.0015 0.0005 6 0.0030 0.0057 0.0089 7 0.0086 0.0057 0.0089 Show the Calculations of Qc and Kc for Exp. 5-7 Please help me out. Thanks9. Calculate the Go in kJ/mol. 3Fe2+ (s) + 2Cr(aq) ⟶2Cr3+(aq) + 3Fe (s); Eocell=0.30 V Group of answer choices -170 +170 +87 +58 -195 10. Calculate Ecell in volts. Zn(s)|Zn2+(2.50x10-4M)||Sn2+(1.50M)|Sn(s) Eocell=+0.624 V Group of answer choices 0.736 0.635 0.512 0.848 no correct answerBelow is given the FT-IR (Fourier Transform Infra Red) data of a 1:1 (by weight) mixture of ethylene carbonate (EC) and dimethyl carbonate (DMC). Absorbance Pis given as a function of wavenumber, m. Regress the above data to a second order polynomial P = a, + a, m+ az m? Find the absorbance at m = 1000 cm-1 Wavenumber, m Absorbance, P (arbitrary unit) ( cm-1) 804.184 0.1591 827.326 0.0439 846.611 0.0050 869.753 0.0073 889.038 0.0448 892.895 0.0649 900.609 0.1204
- Binary mixtures of NiO and Mo were prepared containing 20,50,and 80 weight percent of NiO. 20g of Al (internal standard) were added to 70 g of these mixtures and to 70 g of an unknown mixture of NiO and Mo. The intensity of suitable reflections were recorded. NiO(wt%) Mo(wt%) I(NiO) I (Mo) I (Al) I(NiO)/I(Al) I(Mo/IAl) 20 80 73 639 246 50 50 196 423 261 80 20 508 271 423 Unknown 227 364 263 Calculate I(NiO)/I(Al) and I(Mo)/I(Al) and plot vs % NiO and % Mo respectively Determine composition of unknown : wt % NiO and wt % Mo in unknown mixtureThe resolution product of Ag2SO3 is 1.5 x 10-14. Calculate E0 for Ag2SO3 (k) + 2e- ↔ 2 Ag(k) + SO32-. Ag+ + e- ↔ Ag , E0 = + 0.799 VCalculate delt g for Pbl2(s) + Pb2+(aq) +2I-(aq) T= 25C Kp= 8.7x10-9
- Calculate the resolution required to resolve the following peaks; i) CH3N+ (MW = 28.0187) and N2+ (MW = 28.0061) ii) C2H4+ (MW = 28.0313) and CO+ (MW = 27.9949) iii) C3H7N3+ (MW = 85.0641) and C5H9O+ (MW = 85.0653) iv) 116Sn+ (At W = 115.90219) and 232Th2+ (At W = 232.03800)The resolution product of Ag2SO3 is 1.5 x 10-14. Calculate E0 for Ag2SO3(s) + 2e- ↔ 2 Ag(s) + SO32-. Ag+ + e- ↔ Ag E0 = + 0,799 VUse the data in Figure 4.8 to estimate the ratio of radiation intensity at 10,000 Å (infrared) to that at 5000 Å (visible) from a blackbody at 5000 K. How will this ratio change with increasing temperature? Explain how this change occurs.
- What are transference numbers and how are they related to ionic mobilities?(a) A sample of body serum is to be analysed for sodium by flame emission spectroscopy. 1.00cm3 aliquot of serum was pipetted into each of two 50.0 cm3 volumetric flasks. The firstflask was diluted to volume with deionised water. The absorbance of this first solution was0.350. To the second flask 10.0 cm3 of a 25.0 ppm sodium standard was added and theflask made up to volume with deionised water. The absorbance of this second solution was0.720.(i) Calculate the concentration of the sodium in the body serum in mg dm–3The Ksp of Zn(OH)2 is 3.00 x 10^-17