A 1L solution containing 0.1M NiCl2(aq) and 0.2M CuBr2(aq) is subjected to electrolysis.
How much time would it take to selectively plate out one of the cations at a current of 5A?
A 1L solution containing 0.1M NiCl2(aq) and 0.2M CuBr2(aq) is subjected to electrolysis. How much time...
Silver can be plated out of a solution containing Ag+ according to the half-reaction Ag+(aq)+e−→Ag(s) How much time (in minutes) does it take to plate 19 g of silver using a current of 4.8 A ? Express the time to two significant figures and include the appropriate units.
3. (a) Liquid H2O is subjected to electrolysis. One of the half-reactions is 2 H2O → 02 (g) + 4H+ (aq) + 4 e How many faradays of electricity are required to produce 4.00 L of O, at 759 torr and 27 °C? (b) If a current of 4.25 A is used, how many hours will it take to carry out the electrolysis in part (a)?
Copper can be electroplated at the cathode of an electrolysis cell by the half-reaction: Cu2+(aq)+2e−→Cu(s) How much time would it take for 348 mgmg of copper to be plated at a current of 6.3 AA?
Copper can be electroplated at the cathode of an electrolysis cell by the half-reaction. Cu2+(aq)+2e−→Cu(s) How much time would it take for 329 mg of copper to be plated at a current of 7.1 A ? Express your answer using two significant figures.
A solution containing Pt44 is electrolyzed with a current of 3.60 A. How long will it take to plate out 99% of the platinum in 0.20 L of a 0.025-M solution of Pt4? Time =
Copper can be electroplated at the cathode of an electrolysis cell by the half reaction. How much time (in min) would it take for 313mg of copper to be plated at a current of 5.6A (1A=1C/s)? Cu^2+(aq) + 2e ---->Cu(s)
a. For the electrolysis of molten BaCl2, diagram a cell. Include the direction in which a battery would be placed to power the cell. Write out half-reactions. Label flow of electrons, anode, cathode, indicate what is formed at each electrode (assume electrodes are generic metal). Could this reaction be carried out in aqueous solution? Why or why not (justify numerically). b. 0.67 g of Ag is deposited electrolytically from AgNO3after a certain period of time when subjected to a 12A...
Copper plating was accomplished using either graphite or copper as the electrodes. How would you expect the copper(II) ion concentration of the solution change (i.e. would [Cu2] increase, decrease, or remain the same?) during the plating process if the graphite anode were replaced with a copper one in the electrolysis of CuBr2? Explain your answer 5. Calculate the mass and thickness in mm of the chromium plate on an object if a current of 450.0 mamps were allowed to flow...
need help with questions EXPERIMENT 9: ELECTROLYSIS AND AVOGADRO'S NUMBER QUESTIONS 1. What solution is used in the apparatus for this experiment? a. Would anything else work? b. If so, what are some examples? 2. What gas forms at the cathode in this experiment? 3. What gas forms at the anode in this experiment? 4. How is the temperature of each of the gases determined? EXPERIMENT ELECTROLYSIS & AVOGADRO'S NUMBER UUUUUUUUUUU INTRODUCTION Electrolysis is the process of causing a chemical...
ances 1. Using the exact exponential treatment, find how much time is required to charge an initially uncharged 142 pF capacitor through a 76 MA resistor to 90% of its final voltage. ta S la mo 1. A 590 n resistor, an uncharged 1.8 uF capacitor, and a 6.17 V emf are connected in series. А W R mp +9 E C -9 (a) What is the initial current? (0) = (b) What is the RC time constant T? T...