Answer: If a solution has more hydrogen ion concentration, the solution is acidic and if a solution has less hydrogen ion concentration, the solution is basic.
Step-by-step explanation:
To determine the acidity or basicity of a solution, we look at the pH of the solution.
pH is defined as the negative logarithm of hydrogen ion concentration present in the solution.
![pH=-\log [H^+]](https://img.qammunity.org/2018/formulas/chemistry/high-school/y1nlg9qxar6fauop1r05a1g4xt6dhnvirc.png)
- If the solution has high hydrogen ion concentration, then the pH will be low and the solution will be acidic. The pH range of acidic solution is 0 to 6.9
- If the solution has low hydrogen ion concentration, then the pH will be high and the solution will be basic. The pH range of basic solution is 7.1 to 14
- The solution having pH equal to 7 is termed as neutral solution.
Hence, if a solution has more hydrogen ion concentration, the solution is acidic and if a solution has less hydrogen ion concentration, the solution is basic.