chris quiz 2

chris quiz 2 - CHEM 6C Spring 2006 Section C08 TA Chris...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
CHEM 6C Spring 2006 Name: _____________KEY____________ Section C08 TA: Chris Meier Quiz #2: Electrochemistry II & Kinetics I April 19, 2006 You must show your work for all problems in order to receive credit. Δ G = nFE = RT ln K F=9.6485 × 10 4 C mol -1 , R=8.314 J K -1 mol -1 , RT/F=0.0257 V at 25 ° C n = Q F = It F F=9.6485 × 10 4 C mol -1 , 1 A = 1 C s -1 (1) ELECTROCHEMISTRY (a) Predict the products of electrolysis of a 1 M aqueous solution of KI at pH=7 given the following balanced reduction half-reactions. Answer by stating what is produced at the anode and what is produced at the cathode, assuming overpotentials for each reaction are approximately the same. O 2 (g) + 4 H + (aq) + 4 e - 2 H 2 O (l) E= +0.82 V @ pH=7 2 H 2 O (l) + 2 e - H 2 (g) + 2 OH - (aq) E= 0.42 V @ pH =7 K + (aq) + e - K (s) E ° = 2.93 I 2 (s) + 2 e - 2 I - (aq) E ° = +0.54 Species in solution upon dissolving KI in water: K + , I - , H 2 O possible reactions at anode (oxidations):
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 12/26/2009 for the course CHEM CHEM 6C taught by Professor Hoeger during the Spring '08 term at UCSD.

Page1 / 2

chris quiz 2 - CHEM 6C Spring 2006 Section C08 TA Chris...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online