# What is an example of an Arrhenius acid practice problem?

Jun 17, 2015

An acid is an Arrhenius acid so long as it dissociates into something and a proton.

Try this:
Identify which of the following 4 molecules would act as an Arrhenius acid:

(Serotonin)

${H}_{2} S {O}_{4}$
$N {H}_{3}$
${H}_{2} O$

Hint: There are two, and an "acid" can have a pH of 7.