Exercise 2: In the cell reaction given below, what is the ratio of the activities of ionic species required to make the polarity reverse? Fe2* + Sn Sn2* + Fe

What is the calculated value of the cell potential at 298K for an electrochemical cell with the following reaction, when the H2 pressure is 1.28×10-3 atm, the H+ concentration is 1.04M, and the Fe2+ concentration is 6.08×10-4M ?2H+(aq) + Fe(s) H2(g) + Fe2+(aq)Answer: ______ VThe cell reaction as written above is spontaneous for the concentrations given: (true,False)

In the industrial "chlor-alkali" process, pure chlorine and sodium hydroxide are produced by electrolyzing brine, essentially an aqueous solution of sodium chloride. Suppose a current of 290. A is passed through an aqueous solution of NaCl for 20.0 seconds. Calculate the mass of pure chlorine produced. Be sure your answer has a unit symbol and the correct number of significant digits. Explanation Check 62022 McGraw Hill LLC. All Rights Reserved. Terms of Use I Privacy Center ere to search 99+ IA olo

Problem 10 An electrochemical cell utilizes the following redox process at 25°C: Sn"(aq) + X(s) → Sn(s) + X"(aq), X(s)|x2* (aq, 1 M)||Sn2* (aq, 1 M|Sn(s) Where X symbolizes some metal. The standard galvanic cell potential (standard emf) is: Eel = 0.14 V. What is the standard reduction half-cell potential, E°, if E° 2+ Sn"/Sn = - 0.14 V? "cell Enter your answer in the box provided with correct units and sig. fig.: The standard reduction half-cell potential E°. 2+ Answer: for X is

Skeletal Equation Co³+ (aq) + Mn²+ (aq) → Co²+ (aq) + Mn¹¹(aq) Which of the following half-reactions is correct for the cobalt(III)/cobalt(II)? Select one: Co³+ (aq) - Co²+ (aq) + le O Co³+ (aq) + 1e - Co²+ (aq) O Co³+ (aq) - 1e - Co²(aq) O Co³+ (aq) - Co²+ (aq) – le In Question 14, the cobalt(III) undergoes Refer again to the skeletal equation shown in Question 14. Which of the following half-reactions is correct for the manganese(II)/manganese(IV)? Select one: O Mn²+ (aq) Mn¹(aq) - 2e" O Mn²+ (aq) -2e - Mn+ (aq) O Mn²+ (aq) + 2e Mn¹(aq) O Mn²+ (aq) Mn¹(aq) + 2e™ In the skeletal equation in Question 14, the manganese(II) is undergoing Select one: O oxidation O reduction Identify the oxidizing agent, reducing agent, species oxidized, and species reduced for the skeletal equation in question 14. Label Species oxidizing agent reducing agent species reduced species oxidized