Question

64. A new element, wattsium (Wa), has just been discovered. Careful electrochemical measurements have established the Pourbaix diagram (Fig. 6.27). The following Figure 6.27 thermodynamically stable species are involved: Wa3+, Wa2+, Wa(s), Wa(OH)3, Wa(OH)2, Wa04', and Wa04-. (a) Locate each species in the appropriate predominance region in the diagram. (b) Which species is the best reducing agent? (c) Which species is the best oxidizing agent? Ahlank Pourhaix diagram for the element ruthenium Ruis shown (Fig. 6.28)

Answer 1

Strong oxidising agent is always at the top of the diagram- WaO4^2-

Strong reducing agent is always at the bottom of the diagram- Wa

Strong bases is always at the right of the diagram- Wa(OH)₂, Wa(OH)₃

Strong acids is always at the left of the diagram- Wa³⁺, Wa²⁺