In chemistry, pH (/ piːˈeɪtʃ / pee-AYCH) is a logarithmic scale used to specify the acidity or basicity of aqueous solutions. Acidic solutions (solutions with higher concentrations of hydrogen (H+) cations) are measured to have lower pH values than basic or alkaline solutions.

Aug 22, 2025 · PH, 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 concentration of the hydrogen ion into numbers between 0 and 14. Learn more about pH.

Aug 2, 2025 · pH measures the concentration of hydrogen ions (H⁺) in a solution and indicates whether a solution is acidic, neutral, or basic. The pH scale typically ranges from 0 to 14, where 7 is neutral, values below 7 are acidic, and values above 7 are basic (alkaline).

Jun 10, 2025 · pH is a measure of how acidic or basic a solution is, from 0 to 14. pH is important for chemical reactions in areas like medicine, cooking, and agriculture. Scientists use pH …

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!

Oct 22, 2019 · pH is a measure of how acidic/basic water is. The range goes from 0 to 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base.

Many biological solutions, such as blood, have a pH near neutral. pH influences the structure and the function of many enzymes (protein catalysts) in living systems.

pH values above 7 are commonly referred to as “basic” (or “alkaline”). These common terms engender confusion, because a pH value does not directly reflect a quantitative measure of the concentration of bases in the solution, nor do high pH values constitute a measure of alkalinity.

Nov 4, 2024 · What is pH? Acidic and alkaine (or "basic") are two extremes that describe substances, usually liquids or chemicals, just like hot and cold are two extremes that describe temperature.

The pH level, or possible level of hydrogen in your body, is determined by the food and type of drink you consume. The pH is the concentration of the hydrogen ions. This calculation is based on a pH scale. The pH scale is logarithmic and shows …