Question

Что такое pH и его значение?

Answer 1

Это водородный показатель кислотности среды.

Answer 2

What is pH and its significance?

pH is a measure of the acidity or alkalinity of a solution. It is a scale that ranges from 0 to 14, with 7 being considered neutral. A pH value below 7 indicates acidity, while a pH value above 7 indicates alkalinity. The pH scale is logarithmic, meaning that each unit represents a tenfold difference in acidity or alkalinity. For example, a solution with a pH of 3 is ten times more acidic than a solution with a pH of 4.

The significance of pH lies in its impact on chemical reactions, biological processes, and the environment. pH affects the solubility and reactivity of substances, the function of enzymes and proteins, and the growth and survival of organisms. In the human body, pH balance is crucial for maintaining proper functioning of various systems, such as the digestive system and blood pH.