PH measures the acidity or basicity of liquid solutions - Deepstash

Keep reading for FREE

PH measures the acidity or basicity of liquid solutions

PH measures the acidity or basicity of liquid solutions

The term is used in chemistry, biology, and agronomy. PH translates the values of the concentration of the hydrogen ion into numbers between 0 and 14.

  • Pure water corresponds to a pH of 7, which is neutral (neither acidic nor alkaline). 
  • A pH less than 7 is considered acidic.
  • A pH greater than 7 is considered basic or alkaline.

Ways to take a pH measurement

Danish biochemist S.P.L Sorensen used the measurement to represent the hydrogen ion concentration, expressed in equivalents per litre of an aqueous solution: pH = −log[H+]

The pH can be read with a less accurate litmus paper or with indicator dyes. However, it is usually measured with a pH meter that consists of a voltmeter attached to a pH-responsive electrode (usually mercury-mercurous chloride electrode) and a reference electrode (usually glass that are immersed in a solution. The voltmeter measures the potential difference between the glass and reference electrodes

PH is most important in agriculture

In agriculture, the pH of the soil shows what crops will grow easily in the soil and what adjustments are needed to adapt it for growing other crops.

Acidic soils are often considered infertile as the solubility of aluminium and manganese also increase with acidity. However, conifers and members of the family Ericaceae, such as blueberries, prefer acidic soils. Acidic soil can be neutralized by treating it with lime.

It's time to
Read like a Pro.

Jump-start your

reading habits

, gather your

knowledge

,

remember what you read

and stay ahead of the crowd!

Save time with daily digests

No ads, all content is free

Save ideas & add your own

Get access to the mobile app

2M+ Installs

4.7 App Rating

CURATED BY

antoniov

"Try not to be a man of success, but a man of value." - Albert Einstein

MORE LIKE THIS

Balneotherapy refers to the use of naturally occurring, mineral-rich spring water to improve health and well-being. It is one of the most widely used complementary therapies for various medical conditions, including musculoskeletal, autoimmune, skin, digestive, pulmonary, cardiovascular, and neurological disorders.