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Strong vs Weak Acids and Bases

Posted: Fri Nov 29, 2019 10:43 pm
by JChen_2I
Is there a way to determine if an acid/base is strong or weak when only given their chemical formula?

Re: Strong vs Weak Acids and Bases

Posted: Sat Nov 30, 2019 11:01 am
by Ramneet Sandhu 3D
The higher the electronegativity of the element, the stronger the acid is for binary acids. The more oxygens attached to a central atom, the stronger the acid is for oxoacids.

Re: Strong vs Weak Acids and Bases

Posted: Sat Nov 30, 2019 12:11 pm
by Megan_1F
You can look at the bond length of the acid - longer bond length = more acidic. And you can also look at electronegativity difference in oxoacids = higher difference in electronegativity = more acidic.

Re: Strong vs Weak Acids and Bases

Posted: Sun Dec 01, 2019 2:14 pm
by Dan M -3E
Pretty much, the more ionic character a molecule has (EN difference, bond length), the stronger acid it is

Re: Strong vs Weak Acids and Bases

Posted: Sun Dec 01, 2019 5:54 pm
by Helen Struble 2F
There are only six strong acids, so I've always found it easiest to memorize them. They are: HCl, HNO3, H2SO4, HBr, HI, HClO3, and HClO3. Since they're strong acids, these six will completely ionize in water. Be sure to know all the other properties of these strong acids, too.

Re: Strong vs Weak Acids and Bases

Posted: Sat Dec 07, 2019 3:03 am
by Ramneet Sandhu 3D
Helen Struble 3B wrote:There are only six strong acids, so I've always found it easiest to memorize them. They are: HCl, HNO3, H2SO4, HBr, HI, HClO3, and HClO3. Since they're strong acids, these six will completely ionize in water. Be sure to know all the other properties of these strong acids, too.

What properties do we have to know of the acids?