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FAQs on Formula for Solution & Colligative Properties - Physical Chemistry

1. What is the formula for calculating the solution concentration?
Ans. The formula for calculating the solution concentration is: Concentration (C) = Amount of solute (in grams or moles) / Volume of solution (in liters)
2. What are colligative properties of a solution?
Ans. Colligative properties of a solution are physical properties that depend on the number of solute particles present in the solution, rather than the nature of the solute itself. These properties include boiling point elevation, freezing point depression, vapor pressure lowering, and osmotic pressure.
3. How does the addition of a solute affect the boiling point of a solution?
Ans. The addition of a solute to a solvent increases the boiling point of the solution. This is known as boiling point elevation. The presence of the solute particles disrupts the normal boiling process by creating an additional resistance to vaporization, resulting in a higher boiling point.
4. How does the addition of a solute affect the freezing point of a solution?
Ans. The addition of a solute to a solvent decreases the freezing point of the solution. This is known as freezing point depression. The presence of the solute particles disrupts the arrangement of the solvent molecules, making it more difficult for the solvent to form a solid lattice structure and lowering its freezing point.
5. What is osmotic pressure in a solution?
Ans. Osmotic pressure is the pressure required to prevent the flow of solvent molecules across a semipermeable membrane, due to the presence of solute particles. It is directly proportional to the concentration of solute particles in the solution. Osmotic pressure plays a crucial role in biological systems, such as the movement of water across cell membranes.
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