Chapter 8, Problem 18A

Interpretation Introduction

Interpretation:

The term strong acid needs to be explained.Whether the strong acids and strong electrolytes are same needs to be predicted.

Concept Introduction:

Acids are sour in taste and corrosive in nature.

The substance which dissociated in water into charged particles i.e. ions is known as electrolytes.

Explanation of Solution

Acids are sour in taste and corrosive in nature.

Acids are of two types:

Strong acids

Weak acids

The acids which are not completely ionized and give lesser amount of hydrogen ions are known as weak acids. For example: CH₃COOH.

The acids which are completely ionizes and gives hydrogen ions in the solution are known as strong acids. For example: HCl, H₂SO₄, HNO_3, etc.

The complete ionization reaction is shown below:

  $\text{HCl}\left(\text{g}\right)\to {\text{H}}^{\text{+}}\left(\text{aq}\right)\text{+}{\text{Cl}}^{\text{-}}\left(\text{aq}\right)$

The substance which dissociated in water into charged particles i.e. ions is known as electrolytes.

Electrolytes are of two types:

Strong electrolytes

Weak electrolytes

The electrolytes which are completely ionized are known as strong electrolytes. Strong electrolytes have high electrical conductivity.

The ionized reaction of strong electrolyte is shown below:

  $\text{strong}\text{electrolyte}\left(\text{aq}\right)\text{}\text{}\to {\text{cation}}^{\text{+}}\left(\text{aq}\right)\text{}\text{+}{\text{anion}}^{\text{-}}\left(\text{aq}\right)$

The electrolytes which are partially ionized are known as weak electrolytes. Weak electrolytes have low electrical conductivity.

Strong acids are also strong electrolytes as they both are completely dissociated or ionized in the solution. HCl, H₂SO₄ they both are strong electrolytes and strong acids.