Problem 1(1.1) Show that 0.1 mol of TlX2S dissolves in one litre of a 1 M solution of any strong monoprotic non-coordinating acid. (1.2) Show that 0.1 mol of CuS dissolves in 1 M HNOX3 but not in 1 M HCl. Data: E0(S/SX2−)=−0.48 V; E0(NOX3X−/NO)=0.96 V; pKa(HX2S)=7; pKa(HSX−)=13; Ksp(TlX2S)=1×10−20; Ksp(CuS)=1×10−35; solubility of NO in water (298 K): 2.53×10−2 mol dm−3. Assume that CuX2+ does not form stable complexes with ClX−.Solutions: 1