Tag: Mole

Calculation of Mass of a Molecule and an Atom

Post author By Hemant More
Post date June 4, 2020
1 Comment on 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 […]

Physical Chemistry

Calculation of Number of Moles, Atoms, and Molecules

Post author By Hemant More
Post date June 4, 2020
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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 […]

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 […]

Physical Chemistry

Molecular Mass by Victor Meyer’s Method

Post author By Hemant More
Post date June 3, 2020
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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 […]

Physical Chemistry

Molecular Mass Using Ideal Gas Equation

Post author By Hemant More
Post date June 3, 2020
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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 […]

Physical Chemistry

Molecular Mass Using Graham’s Law of Diffusion

Post author By Hemant More
Post date June 3, 2020
2 Comments on 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 […]

Physical Chemistry

Molecular Mass by Regnault’s Method

Post author By Hemant More
Post date June 3, 2020
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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 […]

Physical Chemistry

Molecular Mass Molar Volume Method

Post author By Hemant More
Post date May 29, 2020
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Science > Chemistry > Molecule and Molecular Mass > Molecular Mass by Molar Volume Method In this article, we shall study the concept of molecular mass (molar mass) and molar volume method to determine it. Molecule: When two or more atoms are firmly held together by a chemical bond, a molecule is formed. The molecule […]

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) […]