Page 1 of 1

Adding H+, OH- and H20

Posted: Mon Feb 25, 2019 1:34 pm
by Ashley McClearnen 1B
Can someone please explain when to add H+, OH- or H20 when balancing redox reactions in acidic/basic solutions?

Re: Adding H+, OH- and H20

Posted: Mon Feb 25, 2019 1:56 pm
by Nathaniel 2E
For acidic solutions, first balance O by adding H2O, then balance H by adding H+.

For basic solutions, first balance O by adding H2O, then balance H by adding H2O to the side of each half reaction that needs H and adding OH- to the other side.

Re: Adding H+, OH- and H20

Posted: Mon Feb 25, 2019 2:04 pm
by Toru Fiberesima 1L
H2O and H+ are used to balance out the numbers of oxygen and hydrogen atoms in the reaction, look at 14.1 in textbook for an example

Re: Adding H+, OH- and H20

Posted: Mon Feb 25, 2019 11:04 pm
by Karyn Nguyen 1K
When do we know when to add H2O on both sides?

Re: Adding H+, OH- and H20

Posted: Tue Feb 26, 2019 1:07 am
by Christina Chang 1C
For a reaction in acidic solution, when there are unbalanced oxygens you would add H2O and then to balance out the extra hydrogens you would add H+. I'm not sure if that answered your question?