Solutions Topics - IIT JEE Syllabus

1

Vapour pressure

2m1/10

📌 Key FormulaOf pure components and mixtures.

2

Introduction of solutions

2m1/10

📌 Key FormulaHomogeneous mixture.

3

Molality

2m2/10

📌 Key Formulam = moles of solute / kg of solvent

4

Molarity

2m2/10

📌 Key FormulaM = moles of solute / L of solution

5

Mole fraction

2m2/10

📌 Key Formulax_A = n_A / Σ nᵢ

6

Percentage (by volume and mass both)

2m2/10

📌 Key Formulaw/w%, v/v%, w/v%

7

The vapour pressure of solutions

2m1/10

📌 Key FormulaVaries with composition.

8

Raoult's Law

2m2/10

📌 Key FormulaP_A = x_A P_A°

9

Ideal and non-ideal solutions

2m1/10

📌 Key FormulaRaoult's law obeyed or not.

10

Composition

2m2/10

📌 Key FormulaOf liquid and vapor phases.

11

Plots for ideal and non-ideal solutions

2m2/10

📌 Key FormulaVapor pressure vs mole fraction.

12

Colligative properties of dilute solutions

- A relative lowering of vapour pressure. - depression of freezing point - The elevation of boiling point - Osmotic pressure;

2m3/10

📌 Key FormulaΔP = P° x_B, ΔT_f = K_f m, ΔT_b = K_b m, π = CRT

13

Determination of molecular mass using colligative properties

2m3/10

📌 Key FormulaFrom formulas above.

14

Abnormal value of molar mass

2m3/10

📌 Key FormulaDue to association or dissociation, van't Hoff factor i.

15

Van’t Hoff factor and its significance

2m3/10

📌 Key Formulai = actual number of particles / formula units, colligative property ∝ i

16

Normality

2m2/10

📌 Key FormulaN = n × M, where n is n-factor.