Add H+ or OH-

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Joanne Guan 1B
Posts: 30
Joined: Sat Jul 22, 2017 3:01 am

Add H+ or OH-

Postby Joanne Guan 1B » Sun Feb 18, 2018 5:37 pm

In Example 14.1 in the book, the solution adds H+ to balance the extra H+ from the H2O. In Example 14.2, the solution adds OH- instead. How do you know whether to add H+ or OH-?

Virpal Gill 1B
Posts: 32
Joined: Thu Jul 27, 2017 3:00 am

Re: Add H+ or OH-

Postby Virpal Gill 1B » Sun Feb 18, 2018 5:42 pm

14.1 was in an acidic solution while 14.2 was in a basic solution, so you have to know whether it is an acidic or basic solution when doing the problem.

Jiun Yue Chung 2I
Posts: 27
Joined: Fri Sep 29, 2017 7:06 am

Re: Add H+ or OH-

Postby Jiun Yue Chung 2I » Sun Feb 18, 2018 8:08 pm

You add H+ ions to redox reactions in acidic solution and OH- ions to redox reactions in basic solutions.


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