What describes a solution with a pH between 12 and 14?

A solution with a pH between 12 and 14 is classified as a strong alkali. The pH scale ranges from 0 to 14, where values below 7 indicate acidity, exactly 7 indicates neutrality, and values above 7 indicate alkalinity.

A pH range of 12 to 14 signifies a high concentration of hydroxide ions (OH-) and a very low concentration of hydrogen ions (H+), which is characteristic of strong bases or alkalis. Common examples of strong alkalis include sodium hydroxide (NaOH) and potassium hydroxide (KOH), both of which can produce a pH towards the upper end of this scale.

Understanding the nature of the pH scale is crucial in applications like chemistry, biology, and cosmetology, where the balance between acidity and alkalinity significantly impacts formulations and reactions. A strong alkali will have a far-reaching impact on chemical reactions and pH-related processes, making it important to accurately classify solutions based on their pH values.