Solution
Important Aspects of Solution
- A mixture of one or more solutes in a solvent is called a solution.
- Example: Mixing sugar in milk, mixing salt in water.
- The solvent is the component present in greater quantity.
- The solute is the component present in lesser quantity.
Properties of Solution
- They are homogeneous, meaning all particles are uniformly distributed.
- The main function of the solvent is to dissolve the solute.
Concentration
- The concentration of a solution can be expressed in terms of moles, grams, volume, etc.
- It is usually expressed as a percentage, such as 20% mole-volume.
Mass/Mass Percentage
- The mass of the solute multiplied by 100 and divided by the mass of the entire solution.
Vapor Pressure
- The pressure exerted by the vapors of a liquid at a specific temperature is called vapor pressure.
- It depends on the temperature.
- The vapor pressure decreases when the amount of solute in the solution increases.
Colligative Properties
- These are properties that depend solely on the number of solutes, not their nature.
- Examples: Vapor pressure, boiling point, freezing point.
Boiling Point Elevation
- The boiling point of a solution is always higher than that of a pure solvent.
- Elevation in boiling point depends on the amount of solute.
Osmotic Pressure
- The pressure applied to prevent the movement of solvent into the solution.
- Reverse osmosis is used to counteract osmosis.
Isotonic Solutions
- Solutions that have equal osmotic pressure.
In conclusion, this provides detailed information about the basics and applications of solutions. Understanding can be further improved with practice.