What is a strong acid? Strong base?

1 Answer
Jan 28, 2017

Answer:

We assume that the solvent is water, and propose......

Explanation:

.....and propose that a strong acid is a species for which the following equilibrium lies to the RIGHT as written:

#HX(aq) +H_2O(l) rarr H_3O^(+) + X^-#

And further that a strong base is an hydroxide species that gives almost complete dissociation to hydroxide ions:

#MOH(aq) rarr M^+ + ""^(-)OH#

Typically (but not always), both acids and bases are hydroxide species, i.e. #M(OH)_x#. The acid causes an increase in the concentration of #"hydronium ion"#, #H_3O^+#, and the base causes an increase in the concentration of #"hydroxide ion"#, #""^(-)OH#.