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Petroleum

PETROLEUM (पेट्रोलियम) Petrol At some places in nature, a thick, viscous and dark colored liquid is found under the rock, which mainly contains aliphatic hydrocarbons up to C 1 to C 40 , this fluid is called refined oil or petroleum. The word petroleum is derived from the Latin words petra and olium which is found under rocks within the earth, hence it is also called mineral oil. Within the earth, this fluid floats above the salt solution. A gas atmosphere exists along with the floating petroleum inside the Earth, which is called natural gas. Petroleum is also called liquid gold. In the present era, this fluid is more valuable than gold for any nation. The progress of any nation depends to a large extent on how much petroleum it has. Its use is very important in various tasks like agricultural industry, traffic communication etc. This oil is found in the highest amount in the United States. Russia Venezuela is also found in greater quantities in Mexico, Burma etc. ...
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Molecule and Molecular Mass

Molecule and Molecular Mass

(अणु तथा आण्विक द्रव्यमान )

Molecule
Molecules

 अणु (Molecule)  :-

"The microscopic unit, which is coincidentally formed by a certain proportion of two or more atoms, which can remain in an independent state, is called a molecule."

Molecule Structure :-

                            To achieve the durability of various atoms, they form a molecule by combining them together. The sign used to display the molecule is called a formula. When only one type of atom is present in a molecule, then the molecule is called Homo atomic. If the molecule is composed of more than one type of atom, then it is called Hetroatomic molecule.

Molecular mass: -

The molecular mass of a molecule is the number that demonstrates that "a molecule of the compound is so heavy to the 1/12th part of an atom of the carbon."

Molecular mass = mass of a molecule of a compound / mass of one atom of 1/12

Gram molecules and gram molecules (g-molecule or molecule mass): -

The power of any compound of 6.023 * 10 to the power 23 molecules exhibits one of its gram-molecules and the mass of a gram-molecule compound displays its village molecule.
1 mole = 1 gram mole = movement number = 6.023 * 10 to the power of 23 molecules

       Mass of  NA = Village molecular mass

📝 The correct word is molecular mass but generally molecular weight is used.

 📝 Voices number = 6.023 * 10 to 23
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Cathode rays and Discovery of Electron

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Law of Constant Proportions (Proust-1799)

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