calculate the Solubility of Ag2CrO4 (expressed as moles ofCrO4^2- per liter) in
a) 0.050M KClO4
b) 0.0050M AgNO3
I have no idea how to start this question.
63. An electron in a hydrogen atom is excited with electrical energy to an excited state with n=2. The atom then emits a photon. What is the value of $n$ for the electron following the emission?