Strong and Weak Acids

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Strong and Weak Acids

Postby Michelle_Nguyen_3F » Fri Nov 18, 2016 12:34 am

How would we determine if an acid is strong or weak? I understand that strong acids produce more proton in a solution than a weak acid, but how would we know that? Thank you!

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Re: Strong and Weak Acids

Postby Aya_Elarid_2H » Fri Nov 18, 2016 3:45 am

Take for example hydrogen chloride (HCl). Strong acids are completely ionized in water, that means that all the HCl break up into H and Cl ions. More H ions mean that the acid is more acidic. Strong acids also have a smaller pH.
Weak acids, on the contrary, only partly ionize into H and other ions, called Acid Radicals.Weak acids are also partly dissociated in solution, meaning that there are still ions(H+) floating. For example take ethanoic acid. It's CHCOOH dissolved in water. Since only part of the CHCOOH breaks up into CHCOO ions and H ions it makes it a weak acid.

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