Categories
Applied Chemistry

Everyday Medicines 01

Science > Chemistry > Everyday Chemistry > Everyday Medicines 01 In the last article, we have studied the mechanism of action of a drug. In this article, we shall study some everyday medicines like analgesics, antipyretics, antihistamines, antifertility, and tranquilizers. Antipyretics: Chemical substances that are used to bring down body temperature with high fevers are […]

Categories
Physical Chemistry

Calculation of Mass of a Molecule and an Atom

Science > Chemistry > Molecule and Molecular Mass > Calculation of Mass of a Molecule and an Atom In this article, we shall study the calculation of the mass of molecule and an atom. Schematic Diagram for Mole Calculations: Where, m = Given mass, M = Molar mass v = Given volume, V = Molar […]

Categories
Physical Chemistry

Calculation of Number of Moles, Atoms, and Molecules

Science > Chemistry > Molecule and Molecular Mass > Calculation of Number of Moles, Atoms, and Molecules In this article, we shall study the calculation of number of moles, number of atoms, and molecules in a given moles. Schematic Diagram for Mole Calculations: Where, m = Given mass, M = Molar mass v = Given […]

Categories
Physical Chemistry

Mole Concept

Science > Chemistry > Molecule and Molecular Mass > Mole Concept In this article, we are going to study very important concept of chemistry known as the mole concept. Berzelius Hypothesis: According to Dalton’s atomic theory atoms of different elements combine with each other in a simple whole number ratio, whereas Gay Lussac’s law of […]

Categories
Physical Chemistry

Molecular Mass by Victor Meyer’s Method

Science > Chemistry > Molecule and Molecular Mass > Molecular Mass by Victor Meyer’s Method In the last few articles, we have studied the molar volume method, Regnault’s method, Graham’s diffusion law method, and ideal gas equation method to determine molecular mass. In this article, we shall study Victor Meyer’s method to determine the molecular […]

Categories
Physical Chemistry

Molecular Mass Using Ideal Gas Equation

Science > Chemistry > Molecule and Molecular Mass > Molecular Mass Using Ideal Gas Equation In the last few articles, we have studied the molar volume method, Regnault’s method, and Graham’s diffusion law method to determine molecular mass. In this article, we shall study the ideal gas equation method to determine the molecular mass of […]

Categories
Physical Chemistry

Molecular Mass Using Graham’s Law of Diffusion

Science > Chemistry > Molecule and Molecular Mass > Molecular Mass Using Graham’s Law of Diffusion In the last few articles, we have studied the molar volume method and Regnault’s method to determine molecular mass. In this article, we shall study Graham’s law diffusion method to determine the molecular mass of a gas. Molecule: When […]

Categories
Physical Chemistry

Molecular Mass by Regnault’s Method

Science > Chemistry > Molecule and Molecular Mass > Molecular Mass by Regnault’s Method In the last article, we have studied the molar volume method to determine molecular mass. In this article, we shall study the concept of molecular mass (molar mass) and Regnault’s method to determine it. Molecule: When two or more atoms are […]

Categories
Inorganic Chemistry

Hydroxides of the Third Row Elements

Science > Chemistry > Third Row Elements > Hydroxides of Third Row Elements In this article, we shall study hydroxides of third row elements. Different types of hydroxides of third-row elements are classified according to their mode of dissociation. According to Arrhenius’s theory, the acid is the substance which gives H+ ions in an aqueous […]

Categories
Inorganic Chemistry

Oxides of the Third Row Elements

Science > Chemistry > Third Row Elements > Oxides of the Third Row Elements A binary compound of an element with oxygen, in which the oxygen atom is electronegative is called an oxide. e.g. MgO, Al2O3, etc. The oxide in which Oxygen exhibits the normal oxidation state of -2 is called normal oxide. In this article, […]