1 answer

18. Identify the metal if during a 1.000 hour long 2 electron electrolysis reaction 8.388 g...

Question:

18. Identify the metal if during a 1.000 hour long 2 electron electrolysis reaction 8.388 g of metal is deposited using a con
Long Answer 20. A galvanic (voltaic) cell consists of Ag/Ag and Sn/Sn2 half cells at standard conditions with a salt bridge
18. Identify the metal if during a 1.000 hour long 2 electron electrolysis reaction 8.388 g of metal is deposited using a constant current of 4.000 A. 19. The standard cell potential (F) of a voltaic cell constructed using the cell reaction below is 0.76 V: Zn(s) +2H (aq) Zn2+(aq)+ H2(g) With PH2 1.0 atm and [Zn2]-1.0 mol L-1, the cell potential is 0.45 V. The concentration of Ht in the cathode compartment ismol L-1,
Long Answer 20. A galvanic (voltaic) cell consists of Ag/Ag' and Sn/Sn2 half cells at standard conditions with a salt bridge containing KCI. Sn2+ (aq) + 2 e-→ Sn (s) Eo =-0.137 V Ag (aq) e Ag (s) E+0.800 V i. Write a balanced equation for the spontaneous redox reaction and determine E ii. Sketch this galvanic cell. Label the anode, the cathode, the direction of flow of electrons in the external circuit and the direction of flow of ions in the salt bridge. iii. The cell used for several hours until the concentration of the reacting cation has dropped from 1.0 M to 0.50 M (note that the product cation concentration has also changed stoichiometrically). What is the new E of the cell at 298 K?

Answers

= 8.382 γ 1.0o ho つ X 36 co sec. 2 F 2 It z»($冫.te-) → 군n2.t aj 2 Len 2 acver 25:21S Conce 2-t .AT-catrek (Red.chi/リ ,. m/ Atて า.sozf/Sn. B00-0.132) Sal+or idge ぺ、Ne) Fiea) eel

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