A 50.0-mL sample of 0.080 0 M KSCN is titrated with 0.040 0 M Cu⁺. The solubility product of CuSCN is 4.8 × 10^-15. At each of the following volumes of titrant, calculate pCu⁺, and construct a graph of pCu⁺ versus milliliters of Cu⁺ added: 0.10, 10.0, 25.0, 50.0, 75.0, 95.0, 99.0, 100.0, 100.1, 101.0, 110.0 mL.