What is Mole concept PPT?

Mole (mol)is a measure of the amount of particles in matter. It is the chemists’dozen. Mole is always represented by Avogadro’s number 6.02 x 1023 1 molar mass of any substance contains one mole of particles (ions, molecules, atoms, formula units) • Mole = mass/molecular mass; • Mole= no.

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 easiest way to learn mole concept?

Mastering moles

  1. 1 Ensure students are totally comfortable with mol = mass/Mr
  2. 2 Start with empirical formulas.
  3. 3 Lay out calculations properly.
  4. 4 Investigate mole ratios in the lab.
  5. 5 Get students to balance equations from mass data for reagents and products.

Why is mole concept so difficult?

(1993) it was found that the operative introduction of the ‘mole’ concept deprives it of a chemical meaning and makes ‘mole’ difficult to understand by pupils with no previous ideas about this concept.

What is stoichiometry PPT?

Stoichiometry deals with the numerical relationships of elements and compounds and the mathematical proportions of reactants and products in chemical transformations.

What is mole BYJU’s?

Mole is a unit in chemistry. A mole of a substance is referred the mass of substance containing the same number of fundamental units as there are atoms in exactly 12.000 g of 12C. The mole is the SI unit for the amount of a substance.

Is Mole concept important for NEET?

Mole concept and Stoichiometry is an important topic from NEET Exam Point of view. Some questions can be asked directly. Most importantly, the whole Chemistry includes this topic. Thus, it is very important to have a clear cut on this topic.

What is mole formula?

Number of moles formula is. Number of moles = Mass of substance / Mass of one mole. Number of moles = 95 / 86.94.

What is stoichiometry used for?

Stoichiometry is the calculation of quantities in chemical equations. Given a chemical reaction, stoichiometry tells us what quantity of each reactant we need in order to get enough of our desired product.