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19 Nov 2019
Question 6 Consider the titration of 25.0 mL of 0.0100 M Sn2+ by 0.0500 M TI+ in 1 M HCl, using Pt and saturated calomel electrodes to find the end point (298 K) (a) Write a balanced titration reaction. (b) Write two different half-reactions for the indicator electrode. (c) Write two different Nernst equations for the net cell reaction (En. n°1.26 V and Esn 4,Sn2+-0.15 V) ET13-/M" = and Eã Sn4+ /Sn2+ =0.15 V) (d) Calculate E at the following volumes of TI3+ 1.00, 2.50, 4.90, 5.00, 5.10 and 10 mL. Sketch the titration curve (Assume that EscE -0.241 V)
Question 6 Consider the titration of 25.0 mL of 0.0100 M Sn2+ by 0.0500 M TI+ in 1 M HCl, using Pt and saturated calomel electrodes to find the end point (298 K) (a) Write a balanced titration reaction. (b) Write two different half-reactions for the indicator electrode. (c) Write two different Nernst equations for the net cell reaction (En. n°1.26 V and Esn 4,Sn2+-0.15 V) ET13-/M" = and Eã Sn4+ /Sn2+ =0.15 V) (d) Calculate E at the following volumes of TI3+ 1.00, 2.50, 4.90, 5.00, 5.10 and 10 mL. Sketch the titration curve (Assume that EscE -0.241 V)
Irving HeathcoteLv2
9 Aug 2019