- Give The Standard Line Notation For Each Cell A 2103 Aq 10 C1 Aq 10 H Aq 10 Cr Aq I Aq 5 H O 1 (163.45 KiB) Viewed 36 times
Give the standard line notation for each cell. (a) 2103(aq) + 10 C1²+ (aq) + 10 H+ (aq) ⇒ 10 Cr³+ (aq) + I₂(aq) + 5 H₂O(1) ○ Pt(s) | Cr³+ (aq), 1₂(aq) || Cr²+ (aq), 103¯(aq), H+ (aq) | Pt(s) ○ Pt(s) | 103 (aq), H+ (ag), I₂ (aq) || Cr²+ (aq), Cr³+ (aq) | Pt(s) ○ Pt(s) | Cr²+ (aq), Cr³+ (aq) || IO3¯¯(aq), H+ (aq), 1₂(aq) | Pt(s) ○ Pt(s) | Cr²+ (aq), 10₂¯(ag), H+ (ag) || Cr³+ (aq), 1₂(aq) | Pt(s) (b) Co(s) + 2 Ag+ (aq) = Co²+ (aq) + 2 Ag(s) O Ag(s) Co²+ (aq) || Ag+ (aq)| Co(s) ⒸCo(s) Co²+ (aq) || Ag+ (aq) | Ag(s) O Co(s) Ag+ (aq) || Co²+ (aq) | Ag(s) Ag(s) | Ag+ (aq) || Co²+ (aq) | Co(s) (c) H₂O₂ (aq) + 2 H+ (aq) +2 e¯ → 2 H₂O(1) E = 1.78 V O2(g) + 2 H+ (aq) + 2 €¯ → H₂O₂(aq) E = 0.68 V OPt(s) | H₂O₂(aq) | Pt(s) ○ Pt(s) | H₂O₂ (aq) | O2 (9) || H+ (aq) | Pt(s) OPt(s) | O₂(g) | H₂O₂ (ag), H+ (aq) || H₂O₂(aq), H+ (aq) | Pt(s) © Pt(s) | H₂O₂(aq), H+ (aq) || O₂ (9) | H₂O₂ (aq), H+ (aq) | Pt(s) (d) Mg²+ (aq) + 2e E = -2.37 V → Mg(s) Fe³+ (aq) +3 e → Fe(s) E = -0.036 V O Fe(s) | Mg²+ (aq) || Fe³+ (aq) | Mg(s) O Fe(s) | Fe³+ (aq) || Mg²+ (aq) | Mg(s) Mg(s) | Fe³+ (aq) || Mg²+ (aq)| Fe(s) O Mg(s) | Mg2+ (aq) || Fe³+ (aq)| Fe(s)