acid & bases to memorize

Moderators: Chem_Mod, Chem_Admin

Posts: 60
Joined: Wed Sep 18, 2019 12:19 am

acid & bases to memorize

Postby 205192823 » Sat Dec 07, 2019 1:21 pm

Do we just need to memorize the common strong&weak acids&bases for the final?

Strong acids: HCl, HBr, HI, HNO3, H2SO4, HClO4
Weak acids: HF, NH4 (and its safe to assume its a weak base if its not on the common strong acids listed above?)
*More oxygen=more acidic

Strong bases: KOH, NaOH, BaOH2,O-2, H-
Weak bases: al(OH)3, NH3, F-. NO2- ,C2H3O2-, CN
*less H, more basic

Posts: 60
Joined: Thu Jul 25, 2019 12:17 am

Re: acid & bases to memorize

Postby SarahCoufal_1k » Sat Dec 07, 2019 1:42 pm

I think the best way is to memorize the strong acids and bases and if you come across one that is not on that list, it is weak.
Fundametals J has a table as well that lists them.

Strong Acids: HCl HI HBr H2So4 HNO3 HCLO4 HCLO3

Strong Bases: these include basically all of the group one metals + hydroxide // also some in group 2 with 2 OH:
NaOH, KOH, LiOH RbOH, CsOH) also Ca(OH)2 Sr(OH)2 Ba(OH)2

It also includes some group 1 and 2 elements with Oxide (O^-2). These include

CaO, BaO, SrO and Li2O, Cs2O, Na2O

Daniel Chen 2L
Posts: 60
Joined: Fri Aug 30, 2019 12:15 am

Re: acid & bases to memorize

Postby Daniel Chen 2L » Sat Dec 07, 2019 7:21 pm

Yes, basically you just need to memorize the list of strong acids and bases. The UAs said that if an acid or base isn't a strong one, just immediately assume that it is a weak acid or base.

Annika Zhang 1F
Posts: 49
Joined: Sat Jul 20, 2019 12:15 am

Re: acid & bases to memorize

Postby Annika Zhang 1F » Sat Dec 07, 2019 7:22 pm

I would just memorize the strong acids or bases

Return to “Calculating pH or pOH for Strong & Weak Acids & Bases”

Who is online

Users browsing this forum: No registered users and 1 guest