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Physical Chemistry
the standerd reduction potential for the half cell
NO3-(aq) +2H+ +e-NO2(g) +H2O is 0.78V
i)calculate reduction potential in 8M[H+]
ii)what will be the reduction potential of the half cell in the nurtal solution.assume all other species to be at unit concentration.
NO3-(aq) +2H+ +e-NO2(g) +H2O is 0.78V
i)calculate reduction potential in 8M[H+]
ii)what will be the reduction potential of the half cell in the nurtal solution.assume all other species to be at unit concentration.
Physical Chemistry
the overall formation constant of following reaction is 1*10^19.
Co+2 +6CN- = [Co(CN)6]-4 for the reaction .calculate the formation of following complex
Co+3 +6CN- = [Co(CN)6]-4
given that [Co(CN)6]-4= [Co(CN)6]-3 +e- , E0= -0.83v
Co+3 +e- =Co+2 , E0 = 1.82v
Co+2 +6CN- = [Co(CN)6]-4 for the reaction .calculate the formation of following complex
Co+3 +6CN- = [Co(CN)6]-4
given that [Co(CN)6]-4= [Co(CN)6]-3 +e- , E0= -0.83v
Co+3 +e- =Co+2 , E0 = 1.82v
Physical Chemistry
for the reaction 4Al+3 O2(g)+6H2O+4OH- =4[Al(OH)4]-, Eo cell 2.73V.If ΔG0f0rmation[OH]- =-157Kj/mol and ΔG0f0rmation[H3O]= -237.2KJ/mol.determine ΔG0f0rmation of [Al(OH)4]-
Physical Chemistry
the emf of the cell Ag/AgCl, (0.05M)KCl // (0.05M)AgNO3/Ag is 0.788v.find the solubility product of Agcl
Physical Chemistry
For the reaction H2+2AgCl+2H2O=2Ag(s)+2H3O+ +2Cl- at 25 degreeC. The slandered free energy of formation of AgCl (s), H2O(l), H3O+ and Cl- are -110,-237, -200-α, (-168+α)KJ/mol. Where α is not known. Calculate the cell voltage if this reaction is run at 25degreeC and 0.8 atm in a cell in which [H3O+] and [Cl-] are 0.006M and 0.02M respectively
Physical Chemistry
For the reaction H2+2AgCl+2H2O=2Ag(s)+2H3O++2Cl- at 250C. The slandered free energy of formation of AgCl (s), H2O(l), H3O+ and Cl- are -110,-237, -200-α, (-168+α)KJ/mol. Where α is not known. Calculate the cell voltage if this reaction is run at 250C and 0.8 atm in a cell in which [H3O+] and [Cl-] are 0.006M and 0.02M respectively
Physical Chemistry
the standerdr reduction potential for Cu2=/Cu is +0.34V.calculate the reduction potiential at PH=14 for the above couple.Ksp Cu(OH)2 is 1.0*10^-19
Physical Chemistry
a silver electrode is immersed in a saturated Ag2SO4(aq).the potential difference between silver and standered hydrogen electrode is found to be 0.711V .determine Ksp(Ag2SO4).Given E0 Ag+/Ag=0.799V
Physical Chemistry
zinc granules are added in excess to 500ml of 0.1M Ni(NO3)2 solution at 25degree celcius until the equilibrium is reached.if standered reduction potiential of Zn2+/Zn and Ni2+/Ni are -0.75 and -.24volt respectively.find the concentration of Ni2+ ions in the solution of equilibrium.
Physical Chemistry
In Na2O crystal, the coordination number of Na+ and O2- respectively are? And how?
