How do the Ka values for weak and strong acids compare?

1 Answer
Slangus
Dec 2, 2015

The greater the #K_a# value for an acid is relative to the strength of the acid, or the magnitude at which it will disassociate in water.

The closer the #K_a# value is to one the stronger it is (the term "strong acid" means that it completely disassociates).

If you can remember the 6 strong acids you'll know that all other acids are weak:
#HCl#
#HBr#
#HI#
#H_2SO_4#
#HClO_4#
#HNO_3#

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