Question

What is the pH value of sulphuric acid?

Answer 1

Hint : To answer this question, we first need to understand what acid. An acid is a molecule or ion that can donate a proton or create a covalent bond with an electron pair, depending on whether it is a Bronsted–Lowry acid or a Lewis acid. The proton donors, also known as Brnsted–Lowry acids, are the first group of acids.

Complete Step By Step Answer:
pH - pH is a scale used in chemistry to describe the acidity or basicity of an aqueous solution. Acidic solutions (those containing a larger concentration of hydrogen ions) have a lower pH than basic or alkaline solutions.
The pH scale is logarithmic, indicating the concentration of hydrogen ions in a solution in inverse order. Because the pH formula approximates the negative of the base 10 logarithm of the molar concentration of hydrogen ions in the solution, this is the case. pH is defined as the negative of the base 10 logarithm of the hydrogen ion's activity.
sulphuric acid - Sulfuric acid (American spelling) or sulphuric acid is a mineral acid made up of the elements Sulphur, oxygen, and hydrogen. It's also known as oil of vitriol. It's a colorless, odorless, viscous liquid that's water miscible.
Because it is an oxidant and has a strong acidic character, the acid in its pure form is very corrosive to other materials. Furthermore, pure acid is a strong dehydrator, meaning it will remove water from any substance it comes into contact with. It's also hygroscopic, meaning it can collect water vapor from the air quickly. A lot of heat is created when sulfuric acid is added to water (this should not be reversed).
So, we conclude that, pH of sulphuric acid for 1mM solution is 2.75, for 10mM solution is 1.87 and for 100mM solution is 1.01.

Note :
Pure sulfuric acid can inflict severe chemical burns and even secondary thermal burns owing to dehydration when it comes into contact with it; even little amounts of the pure acid can be fatal. Although the solution of sulfuric acid in water is significantly less harmful, the oxidative and dehydrating qualities are only present in the pure acid, the solution of the acid in water will still be extremely acidic and should be handled with caution.