what is pH ? what is pH scale?
Answers
What is pH?
pH is a number which indicates the acidic or basic nature of a solution.
What is pH scale?
It is a scale used for measuring hydrogen ion concentration. The p in pH stands for potenz which means power in German.
It has values regarding from 0 (very acidic) to 14 (very alkaline).
Higher the hydronium ion concentration present in the solution, lower is its pH value [pH means power of hydrogen ions].
⇒ If pH > 7, solution is basic
⇒ If pH < 7, solution is acidic
⇒ If pH =7, solution is neutral
Answer:
A pH scale is a tool for measuring acids and bases. The scale ranges from 0-14: Litmus paper is an indicator used to tell if a substance is an acid or a base. The color of the paper matches up with the numbers on the pH scale to indicate what kind of substance is being tested. For example, Vinegar is an acid and measures 2.4 on the pH scale.