Please,please help me with redox equation, thx Write a balanced redox equation f
ID: 708126 • Letter: P
Question
Please,please help me with redox equation, thx
Write a balanced redox equation for reduction of Cu++ to Cu+, balanced using O2 (gas). Write out the mass action (equilibrium constant) expression for this reaction in terms of activities and O2 fufacity. Write a balanced redox equation using aqueous HS- and SO4 2- for reduction of Cu++ to Cu+. Write out the mass action expression for this reaction in terms of activities. Write a balanced redox equation using aqueous HS- and SO42- for reduction of Cu++ (aq) to Cu degree (solid). Write out the mass action expression for this reaction in terms of activities. Tocarry out problem 5, you may need to review redox balancing rules from your Chemistry background or from packet lecture notes on redox reaction balancing.Explanation / Answer
(Cu^{2+} + 1e -> Cu^{+})
(O_{2} + 4H^{+} -> 2H_{2}O + 4e)
Multiply the top equation by 4 to cancel out the electrons on either side, and the whole equation becomes:
(4Cu^{2+} + O_{2} + 4H^{+} -> 2H_{2}O + 4 Cu^{+})
Mass action quotient:
(Q= rac{a_{CU}[Cu^{+}]^4}{a_{Cu2+}[Cu^{2+}]a_{H}[H^{+}]^4 f[O_{2}]})
fugacity is the activity of a gas.