Science > Chemistry > Solutions and Their Colligative Properties > Boiling Point Elevation and Freezing Point Depression In this article, we shall study two colligative properties of solutions, namely elevation of boiling point and depression in freezing point due to addition of solute. Elevation of Boiling Point: Boiling Point of a Liquid: Boiling point is […]
Science > Chemistry > Solutions and Their Colligative Properties > Ideal and Non-Ideal Solutions In this article, we shall study two types of solutions first, those obeying Raoult’s law called ideal solutions and those not obeying Raoult’s law called non-ideal solutions. Ideal Solutions: The solutions which obey Raoult’s law over the entire range of concentration […]
Science > Chemistry > Solutions and Their Colligative Properties > Numerical Problems on Lowering of Vapour Pressure In this article, we shall study to solve problems based on relative lowering of vapour pressure and to calculate the molecular mass of a solute. Example – 01: The vapour pressure of a pure liquid at 298K is […]
Science > Chemistry > Solutions and Their Colligative Properties > Colligative Properties In this article, we shall learn the meaning of colligative properties, colligative properties of solutions, and the lowering of vapour pressure due to the addition of solute in a solvent. Colligative Properties: Colligative properties are those properties of dilute solutions that depend only […]
Science > Chemistry > Solutions and Their Colligative Properties > Solutions of Gases in Liquids In this article, we shall study solutions of gases in liquids and Henry’s law of solubility. Almost all the gases are soluble in water as well as in other liquids to a greater or lesser extent. The solubility of gases […]
Science > Chemistry > Solutions and Their Colligative Properties > Short-cut Methods For Calculating Concentration of Solutions In this article, we shall study short-cut methods to calculate molality, molarity, etc. These methods can only be used in competitive exams only. Direct Formulae to Calculate Molality and Molarity: Where M = molarity in mol L-1 or […]
Science > Chemistry > Solutions and Their Colligative Properties > Numerical Problems on Molality In this article, we shall study numerical problems to calculate molality of a solution. Example – 01: 7.45 g of potassium chloride (KCl) was dissolved in 100 g of water. Calculate the molality of the solution. Given: mass of solute (KCl) […]
Science > Chemistry > Solutions and Their Colligative Properties > Numerical Problems on Molarity In this article, we shall study numerical problems to calculate the molarity of a given solution. Example – 01: A solution of NaOH (molar mass 40 g mol-1) was prepared by dissolving 1.6 g of NaOH in 500 cm3 of water. […]
Science > Chemistry > Solutions and Their Colligative Properties > Concentration of Solution The concentration of a solution is the measure of the composition of a solution. For a given solution, the amount of solute dissolved in a unit volume of solution (or a unit volume of solvent) is called the concentration of the solution. […]
Science > Chemistry > Solutions and Their Colligative Properties > Numerical Problems on Mole Fraction In this article, we shall study to solve problems to calculate mole fraction of solute and solvent. Example – 01: 23 g of ethyl alcohol (molar mass 46 g mol-1) is dissolved in 54 g of water (molar mass 18 […]