Chemistry is the study of matter and the changes it can undergo. In this first unit of class 11 chemistry, we learn the significance of scientific notation, rules to calculate significant figures, the laws governing the combination of different atoms, mole concept, stoichiometry that involves the study of amount of substances that are involved in reactions, and modes of expressing the concentration of the solution.
Curated by: Khan Academy India - English (34 videos)
https://www.khanacademy.org/science/telangana-class-11-chemistry/x9b7e8a51d6b415bc:stoichiometry/x9b7e8a51d6b415bc:methods-of-expressing-concentration-in-a-solution/v/equivalent-weight What exactly is equivalent weight and how does it help you in doing real life calculations? This video gives you an intuition behind the topic and also revises all the various definitions. Check out the last part of the video for an important note! Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! https://www.khanacademy.org/science/telangana-class-11-chemistry/x9b7e8a51d6b415bc:stoichiometry/x9b7e8a51d6b415bc:methods-of-expressing-concentration-in-a-solution/a/molarity Timestamps: 00:00 Introduction 01:30 Equivalent Weight - acids and bases 04:19 Definitions of Equivalent Weight 05:51 Equivalent Weight in terms of electrons - atoms and molecules 07:30 Equivalent Weight of salts 08:48 n-factor and Equivalent Weight 09:33 Equivalent Weight - finer details 10:47 Summary Khan Academy India is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We have videos and exercises that have been translated into multiple Indian languages, and 15 million people around the globe learn on Khan Academy every month. Support Us: https://india.khanacademy.org/donate