Question

What effect does the concentration of ${\mathrm{H}}^{+}\left(\mathrm{aq}\right)$ ions have on the nature of the solution?

Answer 1

Concentration of ${\mathrm{H}}^{+}\left(\mathrm{aq}\right)$ ions:

• The concentration of ${\mathrm{H}}^{+}\left(\mathrm{aq}\right)$ ions is responsible for knowing the nature of the solution.
• The solution can be identified on the basis of concentration of ${\mathrm{H}}^{+}\left(\mathrm{aq}\right)$ or by knowing the value of pH.
• If the concentration of ${\mathrm{H}}^{+}\left(\mathrm{aq}\right)$ ions increases in the solution, then the solution is acidic in nature while if the concentration of ${\mathrm{H}}^{+}\left(\mathrm{aq}\right)$ ions decreases in the solution then, it is basic/alkaline in nature.

pH scale:

• pH determines the measure of the concentration of Hydrogen ions.
• At ${25}^{\mathrm{o}}\mathrm{C}$, if a pH is below $7$, the solution is acidic; if it is above $7$, then the solution is basic and neutral solutions have a pH of $7$.