1. Construct the potential-pH (Pourbaix) diagram for zinc using the following reactions and assuming the activity of all dissolved substances (i.e. any metal cations or anions) is 106. Label the stable species in each region. Designate regions as Active (Corrosion), Passive, or Immune. Ranges for potential -2.5 VSHE to +2 VSHE (Y-axis) and for pH -2 to 14 (X-axis) while plotting the results. {1} Zn²++2e−=Zn(s) (E。= -0.764 V vs.SHE) {2} ZnO(s)+2H++2e¯¯=Zn(s)+H₂O (E。=-0.439 V vs.SHE) {3} ZnO2+4H+2e¯=Zn(s)+ 2H2O (E0= +0.441V) {4}Zn²++H20=Zn0+2H+ (equilibrium constant = 3.16 X 10-³) {5} ZnO+H20=ZnO₂²+2H+ (equilibrium constant = 1.58 X 10-30)

This is an unknown solution which comprises of several ions possible for analysis.  From the given information, determine which ions are present.  Use + for positive, - for negative, or ? for insufficient information.                                                                                             An unknown solution containing the ions listed to the right was found:         For Group I Cations: 1).   A white precipitate was generated when 2 drops of 6M HCl solution was added to the unknown solution test tube. 2).  Di water was added to the solution from part 1, and then the ppt was separated from the supernatant. The ppt was then washed with DI water few times to make sure is ppt is clean.  3).   On the ppt separated from part 2 excess 6M NH3 was added and as a result all the ppt was dissolved.         For Group III Cations: 4).  An addition of Excess 6M NH3 led to a basic solution and a ppt. The ppt was then separated from the supernatant. 5).  When Excess 6M NaOH was…

Complete and balance the following half-reaction in basic solution So3" (aq) – SO,? (aq) 3- 04- O- 03+ 04+ + 1 2 6. 7 8 9. O3 Os O6 O7 O8 O9 (s) (g) (aq) + H;0* H2O OH e H* H. Reset • x H2O Delete + 1L LO 4.

Answer both questions please