Pronunciation: [pˈiː ˈe͡ɪt͡ʃ] (IPA) 
The spelling of the word "pH" can be confusing as it is not spelled out phonetically. The letters "p" and "h" represent the written symbols for the sound of "p" and "h" respectively. However, the letter "H" is used symbolically to represent the logarithmic concentration of hydrogen ions in a solution. The symbol "p" means "negative logarithm of" in this context. The IPA phonetic transcription for "pH" is /piː eɪtʃ/.
pH is a measurement scale used to determine the acidity or alkalinity of a solution. The term "pH" stands for "potential of hydrogen." It is a way to quantify the concentration of hydrogen ions (H+) present in a substance. The pH scale ranges from 0 to 14, with 7 being neutral. Values less than 7 are considered acidic, while values greater than 7 are alkaline or basic.
pH is calculated by taking the negative logarithm of the hydrogen ion concentration in moles per liter (H+). Mathematically, the pH formula is expressed as pH = -log[H+]. This means that a solution with a pH of 3 has a higher concentration of hydrogen ions than a solution with a pH of 5.
The pH scale is logarithmic, meaning that each whole number change represents a tenfold difference in acidity or alkalinity. For example, a solution with a pH of 4 is ten times more acidic than a solution with a pH of 5.
pH is a crucial parameter in various fields including chemistry, biology, environmental science, and agriculture. It plays a significant role in determining the functionality of biological systems, such as enzymes and living cells that are sensitive to pH changes. Additionally, pH is important in industrial processes, water quality assessments, and in maintaining the appropriate pH levels in swimming pools, aquariums, and soil for optimal plant growth.
* The statistics data for these misspellings percentages are collected from over 15,411,110 spell check sessions on www.spellchecker.net from Jan 2010 - Jun 2012.
The word "pH" is derived from the French term "puissance de l'hydrogène", which translates to "power of hydrogen". The concept and measurement of pH were developed by Danish chemist Søren Peder Lauritz Sørensen in 1909. He needed a convenient way to express the concentration of hydrogen ions (H+) in a solution, so he devised a logarithmic scale using the symbol "p" to represent the negative logarithm and "H" to denote hydrogen ions. This resulted in the term "pH", which has since been widely adopted and used to measure the acidity or alkalinity of a substance.
