Tag: Concentration

Arrhenius Equation

Science > Chemistry > Chemical Kinetics > Arrhenius Equation In this article, we shall study the factors affecting the rate of a chemical reaction and the Arrhenius equation. Factors Affecting the Rate Of Reaction: The Concentration of Reactants: The number of collisions and hence the activated collisions between the reactant molecules increase with the increase […]

Physical Chemistry

Collision Theory

Science > Chemistry > Chemical Kinetics > Collision Theory The occurrence of a bimolecular chemical reaction can be explained on the basis of collision theory. The Collision of Reacting Molecules: Consider a bimolecular general reaction A + B → C In order for a chemical reaction to take place, the molecules of reactants A and […]

Physical Chemistry

Molecularity of Reaction and Catalysis

Post author By Hemant More
Post date November 25, 2020
No Comments on Molecularity of Reaction and Catalysis

Science > Chemistry > Chemical Kinetics > Molecularity of Reaction and Catalysis In this article, we shall study the molecularity of reaction and catalysis. The Concept of Elementary Reactions: Many reactions that follow a simple rate law are actually taking place in series of steps. These reactions are called complex reactions. Each step in a […]

Physical Chemistry

Rate of Zero Order Reaction

Post author By Hemant More
Post date November 25, 2020
No Comments on Rate of Zero Order Reaction

Science > Chemistry > Chemical Kinetics > Rate of Zero Order Reaction In this article, we shall study the analytical treatment to the zero-order reaction, and the rate of zero-order reaction. Order of Reaction: The overall order of the reaction is defined as the sum of the exponents to which the concentration terms in the […]

Physical Chemistry

First Order Reaction

Science > Chemistry > Chemical Kinetics > Rate of First Order Reaction In this article, we shall study the order of reaction and the analytical treatment to the first-order reaction, and the rate of the first-order reaction. Order of Reaction: The overall order of the reaction is defined as the sum of the exponents to […]

Physical Chemistry

Introduction to Chemical Kinetics

Post author By Hemant More
Post date July 31, 2020
No Comments on Introduction to Chemical Kinetics

Science > Chemistry > Chemical Kinetics > Introduction to Chemical Kinetics In this article, we shall discuss the concept of chemical kinetics, rate of reactions, and types of reactions on the basis of their rates. Rate of Reaction: The branch of chemistry, which deals with the rate of chemical reactions, the factors affecting the rate […]

Physical Chemistry

Short-cut Methods For Calculating Concentration of Solutions

Post author By Hemant More
Post date January 30, 2020
3 Comments on Short-cut Methods For Calculating Concentration of Solutions

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 […]

Physical Chemistry

Numerical Problems on Molality

Post author By Hemant More
Post date January 30, 2020
23 Comments on Numerical Problems on Molality

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) […]

Physical Chemistry

Numerical Problems on Molarity

Post author By Hemant More
Post date January 29, 2020
6 Comments on Numerical Problems on Molarity

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. […]

Physical Chemistry

Concentration of Solution

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. […]