Question

What do you mean by symbol ${\mathrm{H}}^{+}\left(aq\right)$?

Answer 1

The symbol ${\mathrm{H}}^{+}\left(aq\right)$ stands for a positively charged proton or hydrogen ion. The hydrogen ion or proton does not exist in an aqueous solution. It is always hydrated (combined with water) and represented as ${\mathrm{H}}^{+}\left(aq\right)$. The hydrated hydrogen ion is called hydronium ion ${\mathrm{H}}_3{\mathrm{O}}^{+}\left(aq\right)$.