What Is Mole ? || Avogadro's Number || Mole Concept || Rajeev Sir || #science #Short #armscareer

Stoichiometry - Mole Concept

Mole Concept And Equivalent Mass

Define Avogadro number and mole. What is their importance ?

Temperature Scales || Mole and Avogadro Number || Phases and States OF Matter || Specific Heat

Introduction of Mole Concept || Illustrations OF Mole Concept

Stoichiometry - Numericals Based On Mole Concept

Mole concept is an important tool for dealing with chemical calculations. The element have atomic mases while compounds have molecular masses or molar masses. Mole is infact, a collection of Avogadro's number (N_(A)) of the particles of a substance whether element or compound. The value of Avogadro's number is 6.022 xx 10^(23) (a) Why is mole commonly called chemist's dozen ? (b) What is the value associated with the term mole ?

Stoichiometry - Problem Solving Using Mole Concept

The number of carbon atoms in exactly 12 g C^(12) is called Avogadro's number , N_(A) (6.022 xx 10^(23)) . One mole is the amount of material which contains Avogradro's number of particle. These definitions emphasize that the mole refers to a fixed number of NA^(+) b Avogadro's number of atoms , electrons to refer to a mole of helium , a mole of electrons , or a mole of NA^(+) by Avogadro's number of atoms, electrons or ions respectively. On the other hand, phrases like "one mole of hydrogen" can be ambiguous , and should be restated as "one mole of hydroden atoms" or " one mole fo hydrogen molecules." But it is a matter of common practice among chemists , however , to let the name of the element stand for its mos common form. Thus one mole of O_(2) is frequently referred to as one mole of oxygen , whereas one moles of O is called one mole of oxygen atoms. Suppose if we take one mole molecules fo H_(2)SO_(4) then it contain 2 moles of H atom 1 mole of S atom and 4 moles of O atom. It can also be said that moles of oxygen molecules is (4)/(2) =2 mole. According to common practise , if you have Avogadro number of hydrogen molecules, then its mass is equal to :