⚙️ how
How does pH measure acidity and alkalinity?
Quick Answer
pH measures how many hydrogen ions are present in a solution on a scale from 0 to 14. A lower pH means more acidic, while a higher pH means more alkaline.
The Full Story
The pH scale is a logarithmic way to express hydrogen ion concentration. A pH of 7 is neutral, values below 7 are acidic, and values above 7 are alkaline or basic. Because the scale is logarithmic, each one-step change means a tenfold change in acidity. The concept was introduced in 1909 by Danish chemist Søren Peder Lauritz Sørensen at the Carlsberg Laboratory. pH is crucial in biology, medicine, farming, water treatment, and industrial chemistry.
Key Facts
1.Neutral pH is 7
2.Each pH unit is a tenfold change
3.The concept was introduced in 1909
YouTube Angle
Suggested video title for this topic:
"Why pH numbers matter more than you think"
Was this answer helpful?
Tap a reaction — it helps us pick what to cover next.