Table of Contents
What is the mole concept explain?
A mole is a unit of measurement used to measure the amount of any fundamental entity (atoms, molecules, ions) present in the substance. A mole is very much similar to the concept of weight, as both help in understanding the amount of a substance present.
What is Mole concept class 9th?
The mole is the amount of substance that contains the same number of particles (atoms/ ions/ molecules/ formula units etc.) as there are atoms in exactly 12 g of carbon-12. • Mass of 1 mole of a substance is called its molar mass.
What is the mole concept formula?
This formula can be written as: Number of Atoms or Molecules = (Number of Moles)*(6.022*1023) The relationship between the atomic mass unit (amu) and the gram is given by: 1 amu = (1gram)/(6.022*1023) = 1.66*10-24 grams. Therefore, the mass of one mole of an element will be equal to its atomic mass in grams.
What is Mole concept and molar mass?
Related to the concept of moles, the molar mass of a substance refers to the total mass of one mole of a substance (i.e. molar mass = mass of one mole which is equal to 6.02214076×1023 number of particles of that substance ). So numerically, one molar mass = mass of (6.02214076×1023 * Atomic mass of that element).
What is mole explain with example?
One mole is defined as the amount of substance containing as many elementary entities (atoms, molecules, ions, electrons, radicals, etc.) as there are atoms in 12 grams of carbon – 12(6. 023×1023). The mass of one mole of a substance equals to its relative molecular mass expressed in grams.
Why is a mole 6.02 x10 23?
Originally, a mole was the quantity of anything that has the same number of particles found in 12.000 grams of carbon-12. That number of particles is Avogadro’s Number, which is roughly 6.02×1023.
What is mole concept in short answer?
A mole is defined as the amount of substance containing the same number of discrete entities (atoms, molecules, ions, etc.) as the number of atoms in a sample of pure 12C weighing exactly 12 g.
What is the numerical value of mole?
One mole of a substance is equal to 6.022 × 10²³ units of that substance (such as atoms, molecules, or ions). The number 6.022 × 10²³ is known as Avogadro’s number or Avogadro’s constant.
What is mole fraction in chemistry class 11?
Mole fraction is equivalent to the ratio of moles of a specific component to the number of moles of solution. The mole fraction is the ratio of the number of moles of one component to the total number of moles of the solution (i.e., all the components).