Question

Define the term pH .

Answer 1

pH: The term pH is defined as the negative logarithm of hydrogen ion concentration.

$\mathrm{pH}=-\log \left[{\mathrm{H}}^{+}\right]$

• It is also termed the power of hydrogen.
• This scale ranges from 0 to 14.
• Acids have a value of pH ranging from 0 to 7.
• Bases have a value of pH ranging from 7 to 14.
• Neutral solutions have a pH value of 7.