The formation constants of Ag(NH_3)_2^+, Ag(S_2O_3)_2^3-, and Ag(CN)_2^-, are 2 times 10^7, 1 times 10^13, and 1 times 10^21, respectively. In which of the following solutions would you expect AgI to be most soluble? pure water 1 M NH_3 1 M NaCN 1 M (NH_4)_2S_2O_3 1 M NaI The normal freezing point of ammonia is it freezes at -78 degree C. Predict the signs of Delta H, Delta S, Delta G for ammonia when it freezes at -80 degree C and 1 atm: NH_3(l) rightarrow NH_3(s) Choice A Choice B Choice C Choice D Choice E Which of the following conditions is necessary for a process to be spontaneous? Delta H_sys 0 Delta S_surr 0 Delta G_sys = 0 Which of the following processes are accompanied by an increase in entropy? I_2(s) rightarrow I_2(g) 2I(g) rightarrow I_2(g) 2NH_3(g) rightarrow N_2(g) + 3H_2(g) Mg^2+(aq) + 2OH^-(aq) rightarrow Mg(OH)_2(s) 1, 2 1, 3 3, 4 3 2, 4