Categories
Chemistry

History of hydrogen

Hydrogen comes from Greek meaning “water producer” (“hydro” =water and “gennao”=to make). First isolated and identified as an element by Cavendish […]

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Chemistry

An Introduction to chemical equilibria

Reversible reactions A reversible reaction is one which can be made to go in either direction depending on the conditions. […]

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Chemistry

Heat changes exothermic and endothermic reaction

https://www.youtube.com/embed/eJXL0IrbtqEEnergy is conserved in chemical reactions. One way of stating the ‘law of Conservation of Energy’ is to say the […]

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Chemistry

Rate of chemical reaction

Chemical reaction rate refers to one or more of the following: The rate of disappearance of one of the reactants. The […]

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Chemistry

Mole concept

Since it is not possible to calculate the weight of particles individually, a collection of such particles called mole is […]

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Chemistry

Molar Volume

Molar volume is the volume occupied by one mole of any gas at a definite pressure and temperature. It is […]

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Chemistry

Mass and volume relationship

Mole concept is arguably the broadest topic in chemistry, as it cuts across every other branch of chemistry, as far […]

Categories
Physics

Solubility curve

Solubility curve: The solubility of a given solute in water, as done above, can be determined at many different temperatures, […]

Categories
Chemistry

Solubility – Solute, Solvent, Solution

Definition of Terms SoluteThis is a substance that dissolves in a solvent to form a solution. It can be solid, […]

Categories
Chemistry

Structure of Water Molecule

Structure of water molecule in the gas phase A molecule of water consists of two hydrogen atoms joined to an […]