Activities and Due Dates HW 10 lorado, Boulder-CHEM 1133-Spring18-CARLON/PLATH G

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Activities and Due Dates HW 10 lorado, Boulder-CHEM 1133-Spring18-CARLON/PLATH Graa 4/2/2018 11:00 PM 80/100 Print Calculator Periodic Table Map Sapling Learning For the following battery: Cd(s) | CdC2(aq)I| cr (aq) | Clt) I C(s) (a) Write the reduction half-reaction occuring at the C(s) electrode. (Include physical states of reactants and products.) C(s) electrode: Ci,+e2CI (a) E-14 V O Co(s) electrode O C(s) electrode (b) From which electrode will electrons flow from the battery into a circuit? (c) Calculate the mass of Cl2 consumed if the battery delivers a constant current of 765 A for 91.0 min. Number 0.472 kg There is additional feedback View this feedback bottorm dhvider bar on the on the divider Incorrect. bar again to hide the additional feedback Close O Previous Give Up & View Solution #Try Agan ONext tlEt about us careers privacy policy terms of use contact

Explanation / Answer

Cd(d) /CdCl2(aq) //Cl^- (aq) /Cl2(l)

Reduction half reaction

Cl2(l) + 2e^- -------------------> 2Cl^- (aq)                E0 = 1.4v

The electrons flow from andoe half cell to cathode half cell

Z = 2

F   = 96500c

C   = 765amp

t   = 91min   = 91*60sec   = 5460sec

M = 71g/mole ( molar mass of Cl2)

W    = MCt/ZF

       = 71*765*5460/2*96500   = 1536.6g      = 1.5366Kg

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