1) Calculate the E cell of: Al(s) + Cu 2+ (aq)(0.010M) ? Al 3+ (aq)(1.0M) + Cu(s

Question

1) Calculate the Ecellof: Al(s) + Cu2+(aq)(0.010M) ? Al3+(aq)(1.0M) + Cu(s) (is this balanced?)

A) 2.06 B) 1.94 C) -2.06

2) Calculate the Eocell for: Fe(s) + Br2(g) ? Fe2+(aq) +Br-(aq) ; is this electrolytic or voltaic?

A) -1.52V ; voltaic B) -1.52V ; electrolytic C) 1.52V ; electrolytic D) 1.52V ; voltaic

3) Calculate the Ecellof: Au(s) ; Au3+(aq) // Mn2+(aq) ; Mn(s) is this electrolytic or voltaic?

A) -2.68 ; voltaic B) 2.68 ; voltaic C) 2.68 ; electrolytic D) -2.68 ; electrolytic

4) True or False: When a solid piece of silver is placed in a solution of CaCl2a reaction will occur

5) How many faradays is needed to "plate out" 100.0 g of chromium? (use table 41.1 for charge)

A) 5.8 B) 5.5x10^5 C) 1.8x10^-6

6) The balanced overall equation for: Fe2+(aq) + Br-(aq) ? Fe(s) + Br2(g)

A) 3Fe2+(aq) + 2Br-(aq) ? 3Fe(s) + Br2(g)

B) Fe2+(aq) + 2Br-(aq) ? Fe(s) + Br2(g)

C) 2Fe2+(aq) + 6Br-(aq) ? 2Fe(s) + 3Br2(g)

Explanation / Answer

1)A

2)C

3)A

4)FALSE BECAUSE THE REDUTION POTENTIAL OF SILVER IS MORE THAN THE CALCIUM

5) CHARGE IS NEEDED

6) B

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.