INORGANIC CHEMISTRY
A certain metal displays no acid-base chemistry below neutral pH but is oxidized from M to M2+ at –3.3V and from M2+ to M3+ at –0.5V. Above neutral pH, the 3+ ion exists only as the insoluble hydroxide. At pH=14, this insoluble hydroxide resists reduction to M2+ down to –2.0V. Draw a reasonable Pourbaix diagram for this metal. Explain your answer.