Common Strong/Weak Acids and Bases

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NatBrown1I
Posts: 62
Joined: Fri Sep 28, 2018 12:17 am

Common Strong/Weak Acids and Bases

Postby NatBrown1I » Sun Jan 20, 2019 11:14 pm

What are some examples of common strong/weak acids and bases that we would have to know or would be useful to know?

Te Jung Yang 4K
Posts: 63
Joined: Fri Sep 28, 2018 12:18 am

Re: Common Strong/Weak Acids and Bases

Postby Te Jung Yang 4K » Sun Jan 20, 2019 11:31 pm

Strong Acids:
Group 17 Acids:
HCl - hydrochloric acid.
HBr - hydrobromic acid.
HI - hydroiodic acid.
Others:
HNO3 - nitric acid.
H2SO4 - sulfuric acid (HSO4- is a weak acid)
HClO4 - perchloric acid.
HClO3 - chloric acid.

Weak Acids (usually organic):
Formic HCOOH
Acetic CH3COOH
Hydrocyanic HCN
Hydrofluoric HF
Water H20

Strong Bases:
Group 1 & 2 Bases:
Potassium hydroxide (KOH)
Sodium hydroxide (NaOH)
Barium hydroxide (Ba(OH)2)
Calcium hydroxide (Ca(OH)2)
Lithium hydroxide (LiOH)

Weak Bases:
Ammonia NH3 + other forms of ammonia
Water H2O

Remember that, the conjugate acid/base that is formed from strong acid/base is also weak.

kateminden
Posts: 63
Joined: Fri Sep 28, 2018 12:24 am

Re: Common Strong/Weak Acids and Bases

Postby kateminden » Mon Jan 21, 2019 5:22 pm

Yeah, because there are only a few strong acids and bases, I believe the only way to know them is to memorize the list. I do not think there is a way to determine if something is an acid or a base (if it completely dissociates) just by looking at the given formula.


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