Page 1 of 1

Strong acids and bases to memorize

Posted: Wed Dec 05, 2018 6:41 pm
by Emmaraf 1K
Since conjugate bases of weak acids form basic solutions and conjugate acids of weak bases form acidic solutions does anyone have just a clean list of strong acids and bases to memorize where we just can assume if the acid/base isn't on the list then it's weak? I believe for strong bases it's those which include group 1 and group 2 cations but is there a clear list for strong acids, too?

Re: Strong acids and bases to memorize

Posted: Wed Dec 05, 2018 6:59 pm
by ThomasLai1D
There are only 7 common strong acids:
HCl
HNO3
H2SO4
HBr
HI
HClO4
HClO3

Strong Bases tend to be composed of group 1 and 2 metals.

Re: Strong acids and bases to memorize

Posted: Sat Dec 08, 2018 1:00 pm
by Athena L 1B
Some examples of strong bases using from group 1 and group 2 are CaO, Na2O, and Li2O.

Re: Strong acids and bases to memorize

Posted: Sat Dec 08, 2018 1:05 pm
by Lucy Agnew 3E
Was that list in the textbook? For strong acids?

Re: Strong acids and bases to memorize

Posted: Sat Dec 08, 2018 3:16 pm
by Avery Zuelch 1D
Is there a list to memorize for strong bases?

Re: Strong acids and bases to memorize

Posted: Sat Dec 08, 2018 3:32 pm
by BenJohnson1H
Yes, page 464 in the 7th edition textbook

Re: Strong acids and bases to memorize

Posted: Sat Dec 08, 2018 3:34 pm
by BenJohnson1H
Why would strong acids be conjugates of weak bases and vis versa? This concept escapes me.

Re: Strong acids and bases to memorize

Posted: Sat Dec 08, 2018 3:37 pm
by Casandra
Strong Acids: HCl, HBr, HI, HNO3, HClO3, HClO4, and H2SO4
Stong Bses: LiOh, NaOH, KOH, RbOH, CsOH, Ca(OH)2, Ba(OH02, and Sr(OH)2

Re: Strong acids and bases to memorize

Posted: Sat Dec 08, 2018 3:49 pm
by Casandra
BenJohnson1C wrote:Why would strong acids be conjugates of weak bases and vis versa? This concept escapes me.

A conjugate base is the molecule that is formed after an acid loses a proton.
An acid or base and its conjugate are inversely proportional in terms of strength. Therefore the stronger the acid the weaker its conjugate base.

Re: Strong acids and bases to memorize

Posted: Sat Dec 08, 2018 5:56 pm
by hannahdaijo_4H
So if we can memorize strong acids/bases, is it necessary to memorize common weak acids/bases? Or, like the original poster said, can we just assume that anything now on the list of strong acids/bases is a weak acid/base?