The mole concept is one of the topics with which you leave your preparation of physical chemistry in class 11. Describe the mole concept and apply it to substances. One of the reasons for it being taught earlier is that the concept of mole will be required in almost every other topic of physical chemistry that you study later, irrespective of the complexity of that topic. Admin february 8, 2016 igcse chemistry revision notes, o level chemistry revision notes. The concept of limiting reactants is one of the most difficult for beginning students. Mole concept s you are aware, atoms and molecules are so small that we cannot see them with our naked eyes or even with the help of a microscope. Gay lussacs law avogadros law icse solutionsselina icse solutionsml. Written by teachers for the cie igcse chemistry 91 course.
Lecture notes 5 mole concept molar mass stoichiometry. Any sample of matter which can be studied consists of extremely large number of atoms or molecules. New simplified chemistry class 10 icse solutions mole. Chapter 8, following a definition of stoichiometry, the next two sections, entitled. Arya a, mole concept and problem solving approaches in life sciences 2018. The amount of substance is measured in units of moles. Detailed revision notes on the topic the mole concept. A mole is the amount of any substance that contains as many elementary entities as there are atoms in exactly 1. This mole concept video is made for revision purpose. Learn how to find the theoretical yield in limiting reactant problems. In chemical reactions, atoms or molecules combine with one another in a definite number ratio. The mole concept applies to all kinds of particles. Since moles combine in the same ratio that atoms or molecules do, the coefficients in a balanced chemical reaction specify the relative amounts in moles of the substances involved in the reaction.
It appears to the left of the arrow in a chemical equation. Notes mole concept chapter 3 products a substance resulting from a chemical reaction. Pdf mole concept and problems solving approaches in life. The mole is the amount of substance of a system which contains as many. Chapter 3 practice problems page 1 of 3 chapter 3 stoichiometry the mole concept 1. New simplified chemistry class 10 icse solutions mole concept and stoichiometry. The mole concept cie igcse chemistry revision notes. Formula mass and gram atomic mass and gram formula mass. Pdf mole as a fundamental unit like meter, liter, second etc. Equal to the numerical value of the average atomic mass get from periodic table. The molar mass of an element is the mass number for.
Stoichiometry and formulas mole concept ii 1 limiting reagents. Stoichiometry is the study of the numerical relationships in chemical formulas and reactions. After learning tips and tricks, formulas, concept and numericals in this video, you will be. It is defined as the amount of a substance containing as many constituting particles atoms, molecules or. The molar mass, in gmol, nitrobenzene, c6h5no2, is.
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