At ph = 3.2the solution appears red.
Methyl Orange is an acid-base indicator. In dilute solution at ph greater than 4.4, it is yellow. Illustrate a structure of the species that is formed at the lower ph of the acid proton adds to the azo nitrogen atom adjacent to the aromatic ring containing the -SO3group. Explain why does the proton add to this particular nitrogen when two other nitrogen atoms are available in this molecule?