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)
Keep going! Check out the next lesson and practice what you’re learning: https://www.khanacademy.org/science/ap-chemistry-beta/x2eef969c74e0d802:atomic-structure-and-properties/x2eef969c74e0d802:elemental-composition-of-pure-substances/v/worked-example-determining-empirical-formula-from-combustion-data We can use percent composition data to determine a compound's empirical formula, which is the simplest whole-number ratio of elements in the compound. View more lessons or practice this subject at https://www.khanacademy.org/science/ap-chemistry-beta/x2eef969c74e0d802:atomic-structure-and-properties/x2eef969c74e0d802:elemental-composition-of-pure-substances/v/formula-mass-composition Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help! Donate or volunteer today! Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc Volunteer here: https://www.khanacademy.org/contribute?utm_source=youtube&utm_medium=desc