#H_2SO_4# can ionize to yield two #H^+# ions an and one #SO_4^-2# ion. What is #H_2SO_4 considered?

1 Answer
Sep 1, 2016

Answer:

Sulfuric acid is considered to be a diacid.

Explanation:

Sulfuric acid donates 2 equiv of #H_3O^+# to aqueous solution.

#H_2SO_4 + H_2O rarr HSO_4^(-) + H_3O^+#

#HSO_4^(-) + H_2O rarr SO_4^(2-) + H_3O^+#

The first equilibrium lies almost quantitatively to the right. The second equilibrium is smaller, but still operates, #K_(a2)=1.2xx10^-2#.