Class 12 Exam  >  Class 12 Videos  >  Molarity, Molality, Osmolarity, Osmolality, and Tonicity - Whats the difference? : Solutions

Molarity, Molality, Osmolarity, Osmolality, and Tonicity - Whats the difference? : Solutions Video Lecture - Class 12

FAQs on Molarity, Molality, Osmolarity, Osmolality, and Tonicity - Whats the difference? : Solutions Video Lecture - Class 12

1. What is the difference between molarity and molality?
Ans. Molarity is a measure of the concentration of a solute in a solution, expressed in moles of solute per liter of solution. It is denoted by the symbol M. On the other hand, molality is a measure of the concentration of a solute in a solution, expressed in moles of solute per kilogram of solvent. It is denoted by the symbol m. The main difference between molarity and molality is that molarity is based on the volume of the solution, while molality is based on the mass of the solvent.
2. What is the difference between osmolarity and osmolality?
Ans. Osmolarity is a measure of the concentration of osmotically active particles in a solution, expressed in osmoles per liter of solution. It takes into account both the solute and solvent particles. Osmolality, on the other hand, is a measure of the concentration of osmotically active particles in a solution, expressed in osmoles per kilogram of solvent. It only takes into account the solute particles and is not affected by changes in volume due to temperature or pressure.
3. What is the difference between osmolarity and tonicity?
Ans. Osmolarity refers to the concentration of osmotically active particles in a solution, while tonicity refers to the effect of a solution on the osmotic pressure and shape of cells. Osmolarity takes into account both the solute and solvent particles, while tonicity is only concerned with the solute particles. Tonicity is related to the ability of a solution to cause a cell to gain or lose water, while osmolarity is a measure of the total concentration of solute particles.
4. How do molarity and molality differ in their applications?
Ans. Molarity is commonly used in laboratory settings and calculations involving volume, as it is based on the volume of solution. It is often used in titrations, reaction stoichiometry, and determining the concentration of solutions. Molality, on the other hand, is commonly used in colligative properties calculations and in situations where the volume of the solution may change, such as in temperature-dependent reactions. It is also used in determining boiling point elevation and freezing point depression.
5. What factors affect osmolarity and osmolality of a solution?
Ans. The osmolarity and osmolality of a solution are affected by the number of solute particles present in the solution, rather than their individual properties. Factors that can affect osmolarity and osmolality include the amount of solute dissolved, the type of solute, the temperature, and the presence of other solutes or solvents. Additionally, changes in pressure can affect osmolarity, but not osmolality, as osmolality is unaffected by changes in volume.
Explore Courses for Class 12 exam
Related Searches

Osmolality

,

Molarity

,

shortcuts and tricks

,

and Tonicity - Whats the difference? : Solutions Video Lecture - Class 12

,

MCQs

,

Molality

,

Objective type Questions

,

Extra Questions

,

video lectures

,

Summary

,

Osmolality

,

Osmolarity

,

practice quizzes

,

mock tests for examination

,

Osmolarity

,

Molality

,

Semester Notes

,

Osmolarity

,

and Tonicity - Whats the difference? : Solutions Video Lecture - Class 12

,

ppt

,

Molarity

,

Previous Year Questions with Solutions

,

Important questions

,

and Tonicity - Whats the difference? : Solutions Video Lecture - Class 12

,

Osmolality

,

pdf

,

Viva Questions

,

Sample Paper

,

Molality

,

study material

,

past year papers

,

Molarity

,

Free

,

Exam

;