At a certain temperature K = 1300 L/mol for the reaction given above. Calculate the concentration of FeSCN2+ at equilibrium if 0.077 mol of Fe(NO3)3 is added to 1.00 L of 0.24 M KSCN. (Neglect any volume change.)

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.