In chemistry, pH (/ piːˈheɪtʃ / or / piːˈeɪtʃ /; pee-HAYCH or pee-AYCH) is a logarithmic scale used to specify the acidity or basicity of aqueous solutions. Acidic solutions (solutions with higher …

Dec 5, 2025 · A pH value is the quantitative measure of the acidity or basicity of aqueous or other liquid solutions. The term, widely used in chemistry, biology, and agronomy, translates the values of the …

Nov 4, 2025 · A pH of 7 is neutral. A pH less than 7 is acidic, and a pH greater than 7 is basic. Pure water is neutral, with a pH of 7.0. When chemicals are mixed with water, the mixture can become …

Jun 10, 2025 · Here is an explanation of what pH measurements are in chemistry, how pH is calculated, and how it's used.

The meaning of PH is a measure of acidity and alkalinity of a solution that is a number on a scale on which a value of 7 represents neutrality and lower numbers indicate increasing acidity and higher …

pH is a scale used to measure the acidity or basicity of a solution. It ranges from 0 to 14 and reflects the relative concentration of hydrogen ions (H⁺) and hydroxide ions (OH⁻) in aqueous solutions.

Explore pH levels, test acidity or basicity of solutions, and learn about acids, bases, and neutral compounds with this interactive simulation.

This article explains the concept of pH, how to find and calculate the pH, and how the pH formula and pH equation are used in chemistry!

Acidity and basicity, proton concentration, the pH scale, and buffers.

Apr 20, 2023 · pH is defined as the negative log of hydrogen ion concentration. It can be used to describe the relative acidity (or basicity) of a solution. Because it is based on a logarithmic scale, a …