(Solved): 2 H+(aq) + 2 CrO4 -2(aq)(yellow) ->Cr207 -2(aq) + H2 O (orange) 1. If a few drops of Pb(NO3)2 solu ...

2 H+(aq) + 2 CrO4 -2(aq)(yellow) ->Cr207 -2(aq) + H2 O (orange) 1. If a few drops of Pb(NO3)2 solution are added to the equilibrium above, a yellow precipitate of PbCrO4(s) forms. Which of the following occurs when a few drops of HNO3 are now added to this system: a) A ppt. of Cr(NO3)2 forms. b) A ppt. of Pb(NO3)2 forms. c) More PbCrO4 forms. d) Solution turns yellow.(s) dissolves. e) Some PbCrO4(s) dissolves.