Balance the following redox reaction in acidic solution using the 1/2 reaction m

Question

Balance the following redox reaction in acidic solution using the 1/2 reaction method. Show the two balanced half reactions with electrons before combining to form the whole reaction and the final overall balanced reaction. Fe2 + (aq) + MnO4^- (aq) rightarrow Fe3 + (aq) + Mn2 + (aq) (acidic solution) D. How long must a constant current of 50.0 A be passed through an electrolytic cell aqueous Cu2 + ions to produce 325g of copper metal? Give an answer in minutes. Time = min E. Determine the standard reduction potential (E) at 298K for the half reaction Cu_2 S (s) + 2e- a 2Cu (s) + S (aq) E* = ???? Ksp for Cu_2 S is 2.51 times 10 and E* = + 0.52V for Cu e- t + e - a Cu (s)

Explanation / Answer

Ans E -

Using the formula -

W = z x i x t

w = weight deposited = 325 g

i = current = 50.0 A

z = electrochemical equivalent = 2

t = time

putting the following values in main equation -

325 = 63.5 /2 x 1/ 96500 x 50.0 x t

5.5 hr = t (answer)

Related Questions

Navigate

• Browse (All)
• Browse B
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.