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Chapter 6: Problem 22

Define \(\mathrm{pH}\) and give its mathematical representation.

Short Answer

Expert verified
Answer: pH is a measure of the acidity or alkalinity of a solution, defined as the negative logarithm (base 10) of the hydrogen ion (H⁺) concentration in terms of moles per liter (mol/L). The mathematical representation of pH is given by the formula: pH = -log₁₀[H⁺].

Step by step solution

01

Definition of pH

pH is a measure of the acidity or alkalinity of a solution. It is defined as the negative logarithm (base 10) of the hydrogen ion (H⁺) concentration in terms of moles per liter (mol/L). A pH value can range from 0 to 14, where a pH of 7 represents a neutral solution (neither acidic nor alkaline). A pH value less than 7 indicates an acidic solution, and a value greater than 7 indicates an alkaline solution.
02

Mathematical Representation of pH

The mathematical representation or formula for pH is given by: pH = -log₁₀[H⁺] where pH is the pH value, and [H⁺] denotes the hydrogen ion concentration in the solution measured in moles per liter (mol/L).

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