General knowledge

Tuesday, 29 May 2018

Who is S.P.L. Sørensen

Who is S.P.L. Sørensen 

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S.P.L. Sørensen : 

  • Like every time Google dedicates to the world's great people by putting a doodle on the search engine. On Tuesday (May 29th) Google, through its doodle, the Danish scientist S.P.L , He did an important research in the field of chemistry dedicated to Sørensen.
  • Full name is Søren Peder Lauritz Sørensen was a Danish chemist, famous for the introduction of the concept of pH, a scale for measuring acidity and alkalinity.

Research :- 

He discovered the pH scale in the field of chemistry. The pH scale is a kind of global metric. This measures the acidic amount of a substance.
http://www.phscale.net/

what is pH :

  • pH is a measure of hydrogen ion concentration; a measure of the acidity or alkalinity of a solution. 
  • The pH scale usually ranges from 0 to 14. 
  • Aqueous solutions at 25°C with a pH less than seven are acidic 
  • while those with a pH greater than seven are basic or alkaline. 
  •  pH of 7 is considered perfectly neutral. 
  • Pure water has a pH of 7, although in nature, water is often slightly basic or slightly acidic depending on what other chemicals are dissolved in it. 
  • The acid in your stomach has a pH of 2, while the acid in your car battery has a pH of 1. Most colas have a pH of about 2.5, while orange juice has a ph of about 3. Coffee has a pH of around 5.
  • At the other end of the scale, undiluted bleach is very basic, with a pH of about 12. Ammonia isn't far behind with a pH of about 11.5.
  •  The hand soap in your kitchen has a pH around 9 or 10, and most shampoo is only slightly basic with a pH of about 8. 
  • Your blood actually has a normal pH just slightly above 7.

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