https://www.khanacademy.org/science/cambridge-o-level-chemistry-cie/x8bc8fb44369617ed:experimental-design/x8bc8fb44369617ed:separation-and-purification/e/separations-and-purifications-questions 2026-04-07T23:36:17.218592739Z Separations and purifications questions Questions pertaining to separations and purifications Sze Yan exercise https://www.khanacademy.org/science/class-9-chemistry/x46dd29ce84a663ea:is-matter-around-us-pure/x46dd29ce84a663ea:methods-to-separate-the-components-of-a-mixture/v/simple-and-fractional-distillations 2020-06-23T07:22:40Z Simple and fractional distillations Learn how chemicals can be separated and purified through distillation, a process which separates them based on their respective boiling points. By Angela Guerrero. Angela Guerrero video https://cdn.kastatic.org/googleusercontent/k5V4BDgdD21kDfLcDnc2xY7r7Jx29TAko7autiw2VzVbtZirvyhcRO4jN0av4KbeRm2Q3MDUY1fd4a5NGdsFhLRbGw Simple and fractional distillations Learn how chemicals can be separated and purified through distillation, a process which separates them based on their respective boiling points. By Angela Guerrero. https://cdn.kastatic.org/ka-youtube-converted/3pL2X-8-eVk.mp4/3pL2X-8-eVk.mp4 570 Separation and purification https://www.khanacademy.org/science/ap-chemistry-beta/x2eef969c74e0d802:intermolecular-forces-and-properties/x2eef969c74e0d802:separation-of-solutions-and-mixtures-chromatography/v/distillation 2022-10-05T02:43:18.611402953Z Distillation Distillation is the process of separating the components of a liquid mixture through selective evaporation and condensation. The basis of separation is the difference in the vapor pressures (volatilities) of the respective components. To improve the separation in a distillation, chemists often use a fractionating column, which allows for multiple cycles of evaporation and condensation (this is known as fractional distillation). Sal Khan video https://cdn.kastatic.org/ka_thumbnails_cache/6fdbfa23-b754-4a27-9d78-177b1b6a5759_1280_720_base.png Distillation Distillation is the process of separating the components of a liquid mixture through selective evaporation and condensation. The basis of separation is the difference in the vapor pressures (volatilities) of the respective components. To improve the separation in a distillation, chemists often use a fractionating column, which allows for multiple cycles of evaporation and condensation (this is known as fractional distillation). https://cdn.kastatic.org/ka-youtube-converted/CC8-yVzhWI4.mp4/CC8-yVzhWI4.mp4 296 Separation and purification https://www.khanacademy.org/science/cambridge-o-level-chemistry-cie/x8bc8fb44369617ed:experimental-design/x8bc8fb44369617ed:separation-and-purification/e/crystallisation 2025-02-13T13:42:33.753834602Z Crystallisation Let's solve some questions on Crystallisation Vibhor Pandey exercise https://www.khanacademy.org/science/cambridge-o-level-chemistry-cie/x8bc8fb44369617ed:experimental-design/x8bc8fb44369617ed:separation-and-purification/v/crystallisation-ur 2025-08-07T23:35:51.501752344Z Crystallisation Created by Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Crystallisation Created by Khan Academy https://cdn.kastatic.org/ka-youtube-converted/0KJMh_F9Mr4.mp4/0KJMh_F9Mr4.mp4 188 Separation and purification https://www.khanacademy.org/science/cambridge-o-level-chemistry-cie/x8bc8fb44369617ed:experimental-design/x8bc8fb44369617ed:separation-and-purification/e/purification-of-organic-compounds 2025-07-24T11:41:54.20501149Z Purification of organic compounds We will learn different methods to purify organic compounds. Nidhi Narwal exercise