Acid Strength

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Ramneet Sandhu 3D
Posts: 50
Joined: Fri Aug 30, 2019 12:16 am

Acid Strength

Postby Ramneet Sandhu 3D » Thu Nov 28, 2019 9:57 pm

Is there any way of telling whether an acid is strong or weak other than memorizing the list of strong acids?

Vanessa Chuang 4F
Posts: 51
Joined: Sat Aug 24, 2019 12:18 am

Re: Acid Strength

Postby Vanessa Chuang 4F » Thu Nov 28, 2019 10:23 pm

To my knowledge, the only way to tell the difference between a strong acid and a weak acid is by memorizing the strong acids. I know that within the weak acids, there are ways to figure out which one is stronger of the weak acids but I'm pretty sure that between strong and weak acids you just have to know which ones are strong

Minh Ngo 4G
Posts: 137
Joined: Thu Jul 25, 2019 12:17 am

Re: Acid Strength

Postby Minh Ngo 4G » Thu Nov 28, 2019 11:20 pm

I think memorization is the best way

Kavya Immadisetty 2B
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Joined: Sat Aug 24, 2019 12:17 am
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Re: Acid Strength

Postby Kavya Immadisetty 2B » Thu Nov 28, 2019 11:56 pm

These are the strong acids:
HCl, HBr, HI,
HNO3, H2SO4, HClO4, HClO3

These are the strong bases:
LiOH, NaOH, KOH, RbOH, CsOH
Ca(OH)2, Sr(OH)2, Ba(OH)2

chrischyu4a
Posts: 52
Joined: Thu Jul 25, 2019 12:16 am

Re: Acid Strength

Postby chrischyu4a » Fri Nov 29, 2019 2:19 am

Besides memorizing the list of strong acids, they are also usually associated with longer and weaker bonds which indicates that it gives up hydrogen atoms easier.

andrewcj 2C
Posts: 102
Joined: Thu Jul 11, 2019 12:17 am

Re: Acid Strength

Postby andrewcj 2C » Fri Nov 29, 2019 3:07 am

It's worth noting that while H2SO4 is a strong acid, once it gives off its first proton, it becomes a weak acid. The HSO4- ion acts as a weak acid, as while it can give off its second proton, it usually doesn't.

chari_maya 3B
Posts: 108
Joined: Sat Sep 07, 2019 12:18 am

Re: Acid Strength

Postby chari_maya 3B » Sun Dec 01, 2019 3:18 pm

Why does losing one hydrogen make H22So4 a weaker acid?


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