ICE table

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MaryBanh_2K
Posts: 90
Joined: Wed Sep 18, 2019 12:21 am

ICE table

Postby MaryBanh_2K » Thu Jan 16, 2020 9:52 pm

How do we know when to use the ICE table for acids and bases? Do we have to memorize which are strong acids and strong bases?

Sarah Blake-2I
Posts: 132
Joined: Fri Aug 30, 2019 12:16 am

Re: ICE table

Postby Sarah Blake-2I » Thu Jan 16, 2020 9:57 pm

Yes you should memorize the common strong bases and be able to recognize weak acids and bases, however it is more important to just know the strong ones. Then when you are finding a pH of a weak base or acid, you will need to use an ICE table.

DLee_1L
Posts: 89
Joined: Sat Aug 17, 2019 12:17 am

Re: ICE table

Postby DLee_1L » Fri Jan 17, 2020 9:41 am

For me, if the base contains an element in the first 2 columns of the periodic table and OH or an acid that contains an element in the halogen column, then its a strong acid/base and don't bother with the ice table. Anything else will not 100% dissociate and a ICE table is needed

Nathan Rothschild_2D
Posts: 116
Joined: Fri Aug 02, 2019 12:15 am

Re: ICE table

Postby Nathan Rothschild_2D » Fri Jan 17, 2020 3:52 pm

I believe there are 6 strong acids and 6 strong bases. Memorize those and any other acid or base won't dissociate completely

sarahsalama2E
Posts: 148
Joined: Fri Aug 30, 2019 12:16 am

Re: ICE table

Postby sarahsalama2E » Fri Jan 17, 2020 4:01 pm

The strong acids are:
HClO4
HCL
HBR
HI
HNO3
H2SO4

The strong bases are:
LiOH
NaOH
KOH
Ca(OH)2
Sr(OH)2
Ba(OH)2
---------
Everything else does not dissociate/ionize completely and is therefore a weak acid and/or a base.

KnarGeghamyan1B
Posts: 90
Joined: Fri Aug 09, 2019 12:15 am

Re: ICE table

Postby KnarGeghamyan1B » Fri Jan 17, 2020 4:08 pm

You should use an ice table in both cases, the only difference is for weak acid and bases, the K is less than 10^-3 which means that the [number-x ] concentration can just be calculated as [number] to save time.

Leyna Dang 2H
Posts: 87
Joined: Thu Jul 25, 2019 12:17 am

Re: ICE table

Postby Leyna Dang 2H » Fri Jan 17, 2020 4:14 pm

You use the ICE table for weak acids and bases (doesn't fully dissociate)

Emily Lo 1J
Posts: 35
Joined: Thu Sep 19, 2019 12:16 am

Re: ICE table

Postby Emily Lo 1J » Sun Jan 19, 2020 4:27 pm

You can use ICE tables for acids and bases but you mainly use them when you have weak acids and weak bases.

Catherine Daye 1L
Posts: 89
Joined: Wed Sep 11, 2019 12:16 am

Re: ICE table

Postby Catherine Daye 1L » Sun Jan 19, 2020 4:40 pm

Yes, we have to memorize strong acids and bases. The common rule is that strong acids start with H and strong bases end with OH. Then there are a few other obscure strong acids and bases you should memorize.

AronCainBayot2K
Posts: 86
Joined: Fri Aug 30, 2019 12:17 am

Re: ICE table

Postby AronCainBayot2K » Sun Jan 19, 2020 5:14 pm

An ICE table should be used when given a weak base/acid. When finding concentration always take note of the 5% rule.

Shail Avasthi 3C
Posts: 86
Joined: Fri Aug 30, 2019 12:17 am

Re: ICE table

Postby Shail Avasthi 3C » Sun Jan 19, 2020 5:35 pm

An ICE table should be used when you are given initial concentrations and are asked to find concentrations, pH, or pOH at equilibrium. You should memorize the strong acids and strong bases.

Veronica Lu 2H
Posts: 74
Joined: Wed Sep 18, 2019 12:18 am

Re: ICE table

Postby Veronica Lu 2H » Sun Jan 19, 2020 6:32 pm

Usually you should use the ICE table for weak acids/ bases since the strong ones fully ionize


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