Calculating Electric Potential

Post date: Oct 08, 2014 3:38:15 PM

Read section 11.2 from your text

Answer questions 1-3, 6 on page 523

Also try:

1) For each of the following cells, write the equations for the reactions occurring at the cathode and at the anode, and an equation for the overall or net cell reaction. Calculate the standard cell potential. For these questions, please use the handout of Relative Strengths of Oxidizing and Reducing Agents, not the table from your textbook (not all entities are present in your textbook).

a) Cr_(s) | Cr²⁺_(aq) || Sn²⁺_(aq) | Sn_(s)

b) Co_(s) | Co²⁺_(aq) || SO₄^2-_(aq), H⁺_(aq), H₂SO_3(aq) | C_(s)­

c) Pt_(s) | H_2(g), OH^-_(aq) || OH^-_(aq), O_2(g) | Pt_(s)

Answers:

a) +0.77 V

b) + 0.45 V

c) + 1.23 V