Question

define pH ...............​

Answer 1

In chemistry, pH is a scale used to specify the acidity or basicity of an aqueous solution. Acidic solutions are measured to have lower pH values than basic or alkaline solutions. The pH scale is logarithmic and inversely indicates the concentration of hydrogen ions in the solution.

Answer 2

pH Scale:

>It is a Scale for measuring hydrogen ion concentration in a solution.

>It stands for potenz in German meaning power.

>The pH of a neutral solution is 7.

>The values less than 7(0-7) on the pH scale indicates an acidic solution and it represents an increase in H+ ion concentration in a solution.

>The values more than 7(7-14) on the pH scale indicates a basic solution and it represents an increase in OH- ion concentration in a solution.

>For example,

▪ACID-lemon juice(2.2)

▪NEUTRAL-pure water or blood(7.4)

▪BASE-sodiumhydroxide(14)