2oh- and oh-

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Christineg1G
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Joined: Fri Aug 09, 2019 12:15 am
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2oh- and oh-

Postby Christineg1G » Sat Dec 07, 2019 9:45 am

When solving for pH, how would you know to use 2OH- or OH- in your calculations? Does it have to do with the present of an oxide?

Ellen Amico 2L
Posts: 101
Joined: Thu Sep 19, 2019 12:16 am

Re: 2oh- and oh-

Postby Ellen Amico 2L » Sat Dec 07, 2019 9:59 am

Yeah it depends on the compound you're working with, so you have to think about how lone pairs or protons are being donated. For an oxide like CaO, you end up with 2 OH- because the oxygen takes a hydrogen from water so you form 2 OH-.


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