PH VALUE Meaning and
Definition
-
The pH value refers to a measure of the acidity or alkalinity of a solution, indicating the concentration of hydrogen ions (H+) present in the solution. It is a logarithmic scale ranging from 0 to 14, where a pH of 7 is considered neutral, values below 7 indicate acidity, and values above 7 indicate alkalinity.
The pH value is determined by the concentration of hydrogen ions; the higher the concentration, the lower the pH and the more acidic the solution. Conversely, a lower concentration of hydrogen ions results in a higher pH and a more alkaline solution. The pH scale is exponential, meaning that each unit change in pH corresponds to a tenfold change in acidity or alkalinity. For example, a solution with pH 4 is ten times more acidic than a solution with pH 5.
The concept of pH is widely used and essential in various fields, including chemistry, biology, environmental science, and agriculture. It plays a crucial role in determining the balance and stability of chemical reactions, enzymatic activities, and biological processes. Additionally, the pH value affects the solubility of certain substances, the effectiveness of disinfectants, and the optimal conditions for growing plants or raising aquatic organisms.
Testing the pH value of a solution is typically done using a pH meter or pH indicator strips, which change color based on the pH level.
Common Misspellings for PH VALUE
- oh value
- lh value
- -h value
- 0h value
- pg value
- pb value
- pn value
- pj value
- pu value
- py value
- ph calue
- ph balue
- ph galue
- ph falue
- ph vzlue
- ph vslue
- ph vwlue
- ph vqlue
- ph vakue
- ph vapue
Etymology of PH VALUE
The term "pH value" originates from the French words "pouvoir hydrogène", meaning "hydrogen power". In 1909, the Danish biochemist Søren Sørensen created the pH scale as a measure of acidity or alkalinity. The "p" in pH stands for "puissance", meaning power or potency, while the "H" represents hydrogen. The phrase "pH value" is consequently derived from the power of hydrogen concept upon which the pH scale is based.
Infographic
Add the infographic to your website:
