0

Guest

Courses New

Balance the following redox reaction: CoCl 2 + HO 2 -1 --------> Co(OH) 3 + 2Cl -1

Balance the following redox reaction:
CoCl2 + HO2-1 --------> Co(OH)3 + 2Cl-1

Grade:12th pass

1 Answers

Arun
25750 Points
5 years ago
Co^2+ ==> Co^3+ + e
HO2^- + 2e + H2O ==> 3OH^-
Multiply eqn 1 by 2 and add. Cancel the 2e on each side.
------------------------
2Co^2+ +HO2^- +H2O=> 3OH^- +2Co^3+

You can add in the Cl^- here as
2CoCl2 + HO2^- + H2O ->2Co^3+ + 3OH^- + 4Cl^-
--------------------------
You can make that 2Co^3+ on the right as 2Co(OH)3 BUT you have only 3 OH^- there to do that so you must add 3OH^- on the left side, too, as
2CoCl2 + HO2^- + H2O + 3OH^- ==> 2Co(OH)3 + 4Cl^-

1. Atoms balance on each side.
2. change e balance
3. charge balances on each side.

Think You Can Provide A Better Answer ?

Other Related Questions on Inorganic Chemistry

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More