half-reaction occurs at the cathode

During electrorefining of Cu from CUSO4, how much time (in hours) is needed to produce 250 g Cu on the cathode if the current is kept at 11 A?

Suppose the galvanic cell sketched below is powered by the following reaction: Mn(S)+Fe(NO3)₂(aq) → Mn (NO₂)₂(aq) + Fe(S) E1 S1 Write a balanced equation for the half-reaction that happens at the cathode of this cell. E2 Of what substance is E1 made? Write a balanced equation for the half-reaction that happens at the anode of this cell. Of what substance is E2 made? What are the chemical species in solution S1? S2 What are the chemical species in solution S2? ローロ 0,0,... X e

In a reaction to synthesize nitrogen triiodide, 0.019 mol of I2 are needed. How many grams need to be weighed to measure 0.023 mol of 12?

What volume of CL2 at 1 atm, 25 Co would be produced from the electrolysis of molten NaCl for 10 hours at 7 Amps?

What is the change in mass (in grams) of the anode if a 19.00 A current runs for 11.40 h during the electrolysis of a solution of copper(II) iodide? Answer to one decimal place.