The β(1) for the formation of FeSCN²⁺ is 1100. Calculate the concentration of FeSCN²⁺ in a solution where 0.050 M Fe³⁺ is mixed with 0.050 M SCN⁻. a. assuming an ideal solution b. accounting for ion interactions a) 0.049 M b) 0.051 M c) 0.025 M d) 0.100 M