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AP Chemistry Name (O KE “y) Date / Ch.17 —Electrochemistry: Practice Problems I . : oe Py The half-reaction that occurs at the cathode during the electrolysis of molten sodium bromide is a) 2Br° > Br, +2" ~s . a d « t Veduction Oy +e ; b) Bry + 2¢€ — 2Br a ¥ a +e Na Arvoote. : Ox jhe tron Ey ge d) Na—> Nat +e ae Gr Be 2) What voltage will be proses by this electrochemical cell? 3) 4) a) #2.97V Z Le é [Reduction Potential, E° )H1.55V Meee” Lent © Gok BS 2s > Pb | 0.13 V 2) LSIV 62 ps (-018)- (-O I eT [re8v d) -2.97V / . ot ASF \ = . Gist 422 o> mae negative E => OX x eka 1270 A galvanic cell is set up using the following half-reactions: Zn | Zn** aM): [Ne (1D 1% Ni . 7 = Owe What's’ ee Standard Sheet ce rial the cell? Braet [ox dals= 7) zn +2 > Zn fz 0.763 V 3 a)-0.513V—-b) - 1.013. V c) 1.013 V “Caposi3v Soest = (8250) - (-0.782) £teté = ~ tQ@si3wW —_ IN + 2e7 —> Ni = 0.250 V For the reaction shown below, E°,.u = 0.79 V. ” 6F (aq) + Cr,07* faq) + 14H' > 3Iy (aq) + 2Cr°" (aq) + 7H2Ofaq) Given that the standard reduction potential for Cr,077 > 2Cr** is 1.33 V, what is F° pea for Ipaq)? 40.54 ¥ 8 H0s4v & Ber Fe: feduchh x 3 ) coll = Ecethd EG 7 D2 e)H018¥ + onielad hen 0.18 -V OPG2 (433) - E amacle + - 284 2 Cangok 9» Ganeb O54V Lt, Cows leo 5) According to the information below, what is the standard reduction ‘Potential for the half-reaction Mé** (aq) + 3 & DM)? qiaew MGs) +3 Ag'(aq) > 3 Ag(s) + M"'(@q) a =42.46 V b) -0.06 V Ag(aq) +o > Agts) Ea 0800 D Lee Mom ee ") Ber (onidechon/ Arcot.) O326V BAe, Be ke (reduerien|ent tock) Etott = Ecottace - eal ) $2.46 =11000)-Enrccle Grede LEV 
