Short Answer TypeOn the basis of the standard electrode potential values stated for acid solution. Predict whether Ti4+ species may be used to oxidise FeII to FeIII.
Reaction: E°/V TiIV + e– → Ti3+ + 0.01
Fe3+ + e– → Fe2+ + 0.77
Predict the products of electrolysis obtained at the electrodes in each case when the electrodes used are of platinum.
(i) An aqueous solution of AgNO3.
(ii) An aqueous solution of H2SO4.
Long Answer TypeShort Answer TypeDefinition: The standard hydrogen electrode is the standard measurement of electrode potential for the thermodynamic scale of redox potentials.
The standard is determined by the potential of a platinum electrode in the redox half reaction
2 H+(aq) + 2 e- → H2(g) at 25 °C.
The standard hydrogen electrode is often abbreviated SHE.
Also Known As: normal hydrogen electrode or NHE
Long Answer TypeThe conductivity of 0.01 M solution of acetic acid at 25°C is 1.63 x 10–4 s cm–1. Given:
Λ°m (HCl) = 426 s cm2 mol–1, Δ°m (Na AC) = 91.5 cm2 mol–1
Λ°m (NaCl) = 126.5 cm2 mol–1 Calculate:
(a) the molar conductivity of acetic acid
(b) the degree of dissociation of acetic acid.
(c) the dissociation constant.
(d) the pH of 0.01 M solution of acetic acid.
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