pH of Acid and Base
The pH value of acid and base is commonly used to determine the strength of acid and base in a quantitative manner. The logarithm of H+ ion concentration is defined as pH, which stands for the Power of Hydrogen. Any material or solution’s pH value indicates whether it’s acidic, neutral, or alkaline.
What is pH scale?
A pH scale is a tool for determining acid and base concentrations. The scale goes from zero to fourteen, with zero being the lowest and fourteen being the highest. A litmus test reveals whether a substance is acidic or basic. The colour of the paper matches the pH scale numbers, indicating the sort of chemical being tested.
What is pH value?
A pH scale is used to determine the pH value of a component. The pH scale ranges from 0 to 14, with 0 indicating extremely acidic and 14 indicating extremely alkaline. If a pH value of 7 is found in any solution, it indicates that the solution is neutral in nature. Values less than 7 suggest an acidic solution, whereas values more than 7 indicate an alkaline solution.
The acidity of the solution increases as the pH value decreases from 7 to 1, i.e. a solution with a pH value of 2 is more acidic than a solution with a pH value of 3. The alkalinity of a solution increases from 7 to 14 (in the opposite direction of acidity), i.e. a solution with a pH of 11 is more alkaline than a solution with a pH of 9.
The litmus test of acid and base is shown in the following image.
Acids and Bases
An acid is a substance that is capable of donating a proton (hydrogen ion) to another substance. A base is a molecule able to donate OH- ion/strong>. Acidic substances are usually identified by their sour taste.
Acids have a sour taste and are corrosive i.e. exposure to acid on human skin can cause blisters. Some examples of acids are HCl, H2SO4, and others.
Let’s learn more about acids and bases, their properties, theories, and others in this article.
Table of Content
- What are Acids?
- What are Bases?
- Acid Bases Titration
- pH of Acid and Base
- Difference between Acids and Bases
- Acid-Base Reaction
- Acid-Base Indicator Definition