Understanding Molarity and Normality
* Molarity (M): Represents the number of moles of solute dissolved per liter of solution.
* Normality (N): Represents the number of equivalents of solute dissolved per liter of solution.
Key Difference: Normality takes into account the number of *reactive units* (e.g., H+ ions) a molecule contributes to a reaction.
H2SO4 (Sulfuric Acid) Example
* Molarity: A 1 M H2SO4 solution contains 1 mole of H2SO4 per liter of solution.
* Normality: A 1 N H2SO4 solution contains 2 equivalents of H+ ions per liter of solution (since H2SO4 has 2 acidic hydrogen atoms).
Conclusion
Since a 1 N H2SO4 solution contains 2 equivalents of H+ ions per liter, while a 1 M H2SO4 solution contains 1 mole of H2SO4 per liter, the 1 N H2SO4 solution is more concentrated in terms of reactive units (H+ ions).
