https://www.khanacademy.org/science/ap-chemistry-beta/x2eef969c74e0d802:atomic-structure-and-properties/x2eef969c74e0d802:mass-spectrometry-of-elements/v/mass-spectrometry 2022-10-05T02:43:18.611402953Z Mass spectrometry In the analytical technique of mass spectrometry, atoms or molecules are ionized using a high-energy electron beam and then separated based on their mass-to-charge ratios (m/z). The results are presented as a mass spectrum, which shows the relative abundances of the ions on the y-axis and their m/z ratios on the x-axis. This data can be used to calculate the exact masses of the atoms or molecules in the sample. Sal Khan video https://cdn.kastatic.org/ka_thumbnails_cache/3c3932d6-ff0c-4228-94e1-46f0d93b935a_1280_720_base.png Mass spectrometry In the analytical technique of mass spectrometry, atoms or molecules are ionized using a high-energy electron beam and then separated based on their mass-to-charge ratios (m/z). The results are presented as a mass spectrum, which shows the relative abundances of the ions on the y-axis and their m/z ratios on the x-axis. This data can be used to calculate the exact masses of the atoms or molecules in the sample. https://cdn.kastatic.org/ka-youtube-converted/myolF-h1kKI.mp4/myolF-h1kKI.mp4 258 Comprehensive analysis of mass spectra for atomic and molecular identification https://www.khanacademy.org/science/bmc-grade-9-science/x345505a97fc4a662:measurement-of-matter/x345505a97fc4a662:atoms-and-molecules/v/average-atomic-mass-in 2025-05-24T09:35:11.484794851Z Average atomic mass Let's learn how to calculate average atomic mass! Dubverse video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Average atomic mass Let's learn how to calculate average atomic mass! https://cdn.kastatic.org/ka-youtube-converted/7zdYjYtzJjs.mp4/7zdYjYtzJjs.mp4 518 Comprehensive analysis of mass spectra for atomic and molecular identification https://www.khanacademy.org/science/ap-chemistry-beta/x2eef969c74e0d802:atomic-structure-and-properties/x2eef969c74e0d802:mass-spectrometry-of-elements/v/worked-example-identifying-element-from-mass-spectrum 2022-10-05T02:43:18.611402953Z Worked example: Identifying an element from its mass spectrum Using mass spectrometry data, we can estimate an element's average atomic mass and determine its identity. Sal Khan video https://cdn.kastatic.org/ka_thumbnails_cache/ac8f35bf-5f2f-4104-89c5-ce8004ea5156_1280_720_base.png Worked example: Identifying an element from its mass spectrum Using mass spectrometry data, we can estimate an element's average atomic mass and determine its identity. https://cdn.kastatic.org/ka-youtube-converted/vU7MDe4ph5A.mp4/vU7MDe4ph5A.mp4 201 Comprehensive analysis of mass spectra for atomic and molecular identification https://www.khanacademy.org/science/ap-chemistry-beta/x2eef969c74e0d802:atomic-structure-and-properties/x2eef969c74e0d802:mass-spectrometry-of-elements/a/isotopes-and-mass-spectrometry 2022-01-11T22:17:00.362877679Z Isotopes and mass spectrometry article https://www.khanacademy.org/science/grade-11-biology-snc-aligned/x58c107ba92d3f0b2:domain-d-cells-and-sub-cellular-organelles/x58c107ba92d3f0b2:cell-membrane-and-techniques-used-to-study-it/a/additional-techniques-for-protein-separation-and-analysis 2024-09-10T20:28:05.682567539Z Additional techniques for protein separation and analysis This articles reviews ultracentrifugation and mass spectrometry. article https://www.khanacademy.org/science/hs-chemistry/x2613d8165d88df5e:atoms-isotopes-and-ions/x2613d8165d88df5e:isotopes-and-ions/e/apply-calculating-average-atomic-mass 2026-03-06T03:50:42.250138425Z Apply: calculating average atomic mass Apply your understanding of average atomic mass in this set of free practice questions. Allen Ruch exercise https://www.khanacademy.org/science/ap-chemistry-beta/x2eef969c74e0d802:atomic-structure-and-properties/x2eef969c74e0d802:mass-spectrometry-of-elements/e/mass-spectrometry-of-elements 2023-08-07T17:25:22.494770007Z Mass spectrometry of elements Practice interpreting mass spectrometry data in this set of free questions designed for AP Chemistry students. Lauren Rosebrugh exercise