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)
Unlock the secret behind how gases react in perfect volume ratios with Gay-Lussac’s law! This video breaks down the law using two classic chemical reactions — the formation of water and ammonia — revealing how nature follows precise mathematical patterns even in the chaos of reactions. From concept to calculation, let's see how volume ratios reveal the hidden order in chemical reactions. Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! https://www.khanacademy.org/science/class-11-chemistry-india/xfbb6cb8fc2bd00c8:in-in-some-basic/xfbb6cb8fc2bd00c8:in-in-law-of-chemical-combination/e/laws-of-chemical-combination%20draft%201?lang=en Timestamps: 0:00 Introduction to Gay Lussac’s law 0:22 Example: Formation of water vapour to understand Gay-Lussac’s law. 1:18 Statement of Gay-Lussac’s law 2:12 Understanding ratios 3:33 Example: Formation of ammonia to understand Gay-Lussac’s law. 6:18 Practice problem on Gay Lussac’s law 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 Created by Nitika Duggal