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Strong or weak acids/ bases
Posted: Sun Dec 10, 2017 12:22 am
by AlyssaPeckham1A
How do you determine if an acid/base is weak or strong?
Re: Strong or weak acids/ bases
Posted: Sun Dec 10, 2017 12:34 am
by Maya Krishnan 3E
Strong acids produce more protons in a solution than a weak acid, such as Hal, or HBr. Also, weak acids are incompletely ionized in a solution.
Strong bases are completely ionized in water, such as Li2O or NaOH. Also, weak bases are not completely ionized in water
Re: Strong or weak acids/ bases
Posted: Sun Dec 10, 2017 1:45 am
by Kaileigh Yang 2I
A strong acid also typically has weaker electron affinity because it makes it easier to break off completely into its ions.
Re: Strong or weak acids/ bases
Posted: Sun Jun 10, 2018 4:11 pm
by Elana Weingord 1C
How do you know how well a base will ionize in water if you are just given the chemical formula?
Re: Strong or weak acids/ bases
Posted: Sun Jun 10, 2018 5:55 pm
by Chem_Mod
Strong acids/bases dissociate 100% to produce H+ or OH- and weak acids do not.
You should memorize the strong acids/bases (which there are a few). Anything that is not a strong acid/base is a weak acid/base.
Re: Strong or weak acids/ bases
Posted: Sun Jun 10, 2018 9:28 pm
by Shione Nakahara 1F
Most acids are weak acids that dissociates incompletely. These acids have higher pKa than strong acids which release all there H+ when dissolved in water. Likewise, a weak base is a base that does not ionize fully in water and also has a lower pH compared to strong bases.
Re: Strong or weak acids/ bases
Posted: Wed Jun 13, 2018 7:12 pm
by ramayyala1G
The easiest way to do this is just memorize the 7 strong acids and 8 strong bases. Anything else is weak pretty much. The strong acids are HCl, HBr, HI, HNO3, HClO4, HClO3, H2SO4, H2SeO4. The strong bases are NaOH, KaOH, CsOH, Can(OH)2, Sr(OH)2, RbOH, Ba(OH)2