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A standard galvanic cell is constructed with Zn of the following statements are correct? Z n and F2 F half cell compartments
A standard galvanic cell is constructed in which a Cu2+ Cu half cell acts as the cathode. Which of the following statements a
Consider the following half-reactions: Half-reaction E° (V) Ag+ (aq) + e — Ag(s) 0.799V Cu2+(aq) + 2e Cu(s) 0.337V Mg2+(aq) +
Consider the following half-reactions: Half-reaction E° (V) 12(s) + 2e - →21 (aq) 0.535V Ni2+ (aq) + 2e —— Ni(s) -0.250V Mn2+
AH, (kJ/mol) AG, (kJ/mol) 5 (l/mol K) - 74.8 186,3 -241.8 130.7 191.6 240.1 CH4(9) H20 (9) H2 (9) CO (9) N2 (9) 02 (9) NO2
0 0
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Answer #1

Q1. Zn2+ | Zn and F2 | F-

The correct statements are :

(1.) F2 is reduced at cathode.

(2.) The anode compartment in the Zn2+|Zn compartment.

(3.) In the external circuit, electrons flow from the Zn2+|Zn compartment to the F2|F- compartment.

Q2. Cu2+ | Cu half cell

The correct statements are :

(1.) The cathode reaction is Cu2+ + 2 e-\rightarrow Cu

Q3. Ag+, Cu2+, Mg2+

(1) The strongest oxidizing agent is : Ag+ (aq)

(2) The weakest oxidizing agent is : Mg2+ (aq)

(3) The weakest reducing agent is : Ag (s)

(4) The strongest reducing agent is : Mg (s)

(5) Will Ag+ (aq) oxidize to Mg(s) to Mg2+ (aq)? : Yes

(6) Which species can be reduced by Cu(s)? : Ag+ (aq)

Q4. I2 , Ni2+, Mn2+

(1) The weakest oxidizing agent is : Mn2+ (aq)

(2) The strongest reducing agent is : Mn (s)

(3) The strongest oxidizing agent is : I2 (s)

(4) The weakest reducing agent is : I- (aq)

(5) Will Mn(s) reduce I2 (s) to I- (aq)? : Yes

(6) Which species can be oxidized by Ni2+ (aq) : Mn (s)

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