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In the cell pt(s) |H2(g, 1bar|HCl (aq)|Ag(s)|Pt(s) the cell potential is 0.92 when a 10−6 molal HCI solution is used. The standard electrode potential of (AgC1/Ag, C1) electrode is {given,  = 0.06Vat298K}

(a)

0.20 V

(b)

0.76 V

(c)

0.40 V

(d)

0.94 V


Question ID - 52184 | Toppr Answer

In the cell pt(s) |H2(g, 1bar|HCl (aq)|Ag(s)|Pt(s) the cell potential is 0.92 when a 10−6 molal HCI solution is used. The standard electrode potential of (AgC1/Ag, C1) electrode is {given,  = 0.06Vat298K}

(a)

0.20 V

(b)

0.76 V

(c)

0.40 V

(d)

0.94 V

1 Answer - 5876 Votes

3537

Answer Key : (a) -

Pt(s)|H2(g, 1bar)|HClaq)|AgCI(s)|Ag(s)|Pt(s)

Anode: H22h+ +2e×1

Cathode : eAgCI(s)Ag(s)+Cl (aq)             

H2(g)1 + AgCI(s)2H++2(A)(s)+2Cl (aq)

Ecell=e=log10((H+)2.(Cl)2)

.925=(+)log10((106)2(106)2)

.92=0+−0.03 log10(106)4

/Ag, CI=.92+.03×−24=0.2 V



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