Skip to main content

featured post

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. ...
Post a Comment

Law of multiple proportions (Dalton)

Law of Multiple Proportions (Dalton) 

गुणित अनुपात का नियम (डाल्टन)

(a) According to this rule,
                                             "When the two elements together make two or more chemical compounds, then a certain amount of an element that combines with different quantities of the other element has a simple math ratio."

Law of Multiple proportion
Law of Multiple proportion

(b) Considered two elements A and B combine together to form two compounds. In these compounds, different amounts of B coincide with the fixed quantities of A. There is a simple math ratio in different quantities of these B, which coincide with a certain amount of A.

(c) Examples of the rules of mathematical ratios are as follows-

  1.) The production of CO and O is produced by CO and O. In CO C: O is 12: 16, whereas C : O is 12: 32 in CO2 or ratio of O in CO and CO2  is 16 : 32.
 i.e. 1 : 2 is a simple math ratio.

 2.) N and O form five permanent oxides by acting together, which is N2O, N2O3, N2O4 and N2O5, these oxides have the ratio of the amount of oxygen acting with 28g N 16: 32 : : 48: 64: 80 that is 1: 2 : : 3: 4 is a simple mathematical ratio.

 3.) In H2O and H2O2, 2 grams H interacts with 16 and 32 grams of O and their ratio is 16 : 32 that is 1 : 2.
(d) Exceptions are found in this rule after exploring isotopes.
Labels:

Comments

Post a Comment

popular post

Atom and Atomic Mass

Atom and Atomic Mass (   परमाणु तथा परमाणु द्रव्यमान  ) परमाणु (Atom)  :- The smallest part of an element that takes part in chemical reaction is called atom. Atoms of inert gases can remain in an independent state whereas atoms of other elements can not remain in independent state The symbol used to display the atom of an element is called a symbol The smallest atom is of hydrogen (H) at which the atomic mass is 1.008 amu (atomic mass unit) and atomic radius is approximately 0.931 angrstrom. Atomic Structure of Carban  Atomic Mass (परमाणु द्रव्यमान)  :- The atomic mass of an element is the number that demonstrates how many times the amount of an atom of that element is 6x12 times the mass of one atom of 6 c 12 . 📝 The mass of an atom of carbon is assumed to be 12.000 units. Formula for finding atomic mass - Atomic mass =   Mass of an atom of the element   /  1/12*12  Mass of an atom The ...
Post a Comment
Read more

Law of Constant Proportions (Proust-1799)

Law of Constant Proportions (Proust-1799) स्थिर अनुपात का नियम (प्राउस्ट,1799) (a) According to this rule, "In each chemical of a chemical compound the same elements are present and their mass ratio is also fixed or according to the mass of a compound the elemental composition is always fixed." Constant Proportion Law                              This rule was rendered by the East. They studied the natural and synthetic samples of  CuCO 3 and found that the combination of both samples is similar. (Cu = 51.4%, O = 38.8%, C = 9.7%) (b) This rule was revised by stas who composed compounds of various methods and found that compounds of the obtained compounds are similar. For example: -          1.) By heating CaCO 3 -                            CaCO 3 = CaO + CO 2     ...
Post a Comment
Read more

Molecule and Molecular Mass

Molecule and Molecular Mass (अणु तथा आण्विक द्रव्यमान ) 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 ...
Post a Comment
Read more