Laws Of Chemical Combination

Examples|Law Of Chemical Combination|Questions|Summary

Law Of Chemical Combination ( रासायनिक संयोजन का नियम )|Law Of Conservation Of Mass (द्रव्यमान संरक्षण का नियम)|Law Of Constant Proportion (स्थिर अनुपात का नियम)|Law Of Multiple Proportion (गणित अनुपात का नियम)|Summary (सारांश)

Law OF Chemical Combination - Constant Mass/Constant Proportion/Multiple Proportion/ Reciprocal Proportion/Combining Volume (Gay-Lussac’s Law)||Avogadro’s Hypothesis

Methods OF Determination OF Atomic Weight || Law OF Isomorphism || Volatile Chloride Law || Specific Heat Method || Law OF Chemical Combination || Law OF Conservation OF Mass || Law OF Definite Proportion || Law OF Multiple Proportion || Law OF Combining Volume

Introduction to stoichiometry|Unit conversion| Law of chemical combination|Law of conservtion of mass|Law of constant composition

Ravi was performing some experiements related to the laws of chemical combination in the science laboratory under the guidance of his chemistry teacher Mr. John. Ravi found that when he burned 1 gram of hydrogen gas in 8 grams of oxygen gas in a closed vessel, he obtained 9 grams of water. He repeated this experiment many times but obtained the same results every time (a) Write a balanced chemical equation for the reaction between hydrogen and oxygen to form water. Also write the names of all the substances involved below their formulae in the equation (b) What are the reactants and products in the above reaction ? (c) Which law of chemical combination is illustrated by the fact that when Ravi burned 1g of hydrogen in 8g of oxygen, he obtained 9g of water ? (d) What mass of water will be obtained if 1g of hydrogen is burned in 10g of oxygen ? Which law of chemical combination will govern your answer ? (e) What values are displayed by Ravi in this episode ?

According to Dalton's atomic theory, all matter whether an element, a compound or a mixture is composed of small particles called atoms which can neither be created nor destroyed during a chemical reaction. Dalton's theory provides a simple explanation for the laws of chemical combination. He used his theory to explain law of conservation of masses, law of constant proportions and law of multiple proportions, based on various postulates of the theory. Dalton was the first scientist to use the symbols for the elements in a very specific sense. When he used a symbol for an element he also meant a definite quantity of that element, that is one atom of that element. Which postulate of Dalton's atomic theory is the result of the law of conservation of mass?