Beginner Topic 291 of 1102 States of Matter & Solutions
Solute and Solvent
The solvent is the component present in greater amount; the solute is dissolved in it.
Practise States of Matter & Solutions All States of Matter & Solutions topics
In-depth explanation of Solute and Solvent
In a solution the solvent is usually the component present in the larger amount, and the solute is the component dissolved in it. Water is called the universal solvent because it dissolves many ionic and polar substances. Dissolution occurs when the attractions between solute and solvent particles are strong enough to compensate for breaking solute-solute and solvent-solvent interactions. The solvent surrounds each solute particle in a process called solvation. The distinction between solute and solvent is sometimes arbitrary, as in mixtures of two liquids.
Going deeper: Solute and Solvent
Key ideas: Convention: the component with the greater amount is the solvent, but for solutions where water is present it is usually the solvent. Concentration calculations need the right quantity: molarity uses solution volume, molality uses solvent mass. Solvents are classified as polar protic like water, polar aprotic like acetone, and nonpolar like hexane.
Common mistakes and connections: Students think the solute disappears when dissolved; it is still present, with the same mass, conserved. Another error is that the solvent must be a liquid; solid solutions have solid solvents. In molarity problems, confusing volume of solvent with volume of solution gives errors. Links to like dissolves like, solvation and concentration units.
Visualization of Solute and Solvent
The solvent is the component present in larger amount; vodka is ethanol (solute) dissolved in water, but in air N2 is the solvent. The interactive lesson shows this as a live animation or chart.
Worked example and use case
In a saltwater solution, sodium chloride is the solute and water is the solvent.
Frequently asked questions about Solute and Solvent
What is Solute and Solvent?
The solvent is the component present in greater amount; the solute is dissolved in it.
Is Solute and Solvent a beginner, intermediate or advanced topic?
Solute and Solvent is a beginner topic in States of Matter & Solutions. It needs no earlier chemistry lessons and is a good starting point.
What should I learn before Solute and Solvent?
Study these earlier topics in States of Matter & Solutions first: Frenkel Defect, Liquid Crystals, Solution.
What comes after Solute and Solvent?
The next topics in States of Matter & Solutions are Solubility and Saturated Unsaturated Supersaturated.
Can I practise Solute and Solvent with quizzes?
Yes. The interactive lesson includes a self-check question on Solute and Solvent, and the States of Matter & Solutions quiz draws on every topic in this area.
Where Solute and Solvent fits in States of Matter & Solutions
Solute and Solvent is topic 72 of 109 in States of Matter & Solutions.