Uploaded May 2025 | Updated September 2026, 1 week ago
Proust's Law of Definite Proportions explains why compounds always form in fixed mass ratios. This video walks through Proust’s reasoning and how this law supports atomic theory and stoichiometry problems.
Related Units:
If you're studying early atomic theory, watch the full playlist: youtube.com/playlist?list=PLvUW25kBaMMszGN5XY0QXNP_t-9Z-B8C2
If you want a strong foundation for studying chemistry, this playlist is your friend: youtube.com/playlist?list=PLvUW25kBaMMssGHFrR4Ee7_-8cFBvBkgN
If you're studying for the MCAT: youtube.com/playlist?list=PLvUW25kBaMMuJZI5IVWO8X0syBANn-YqY
🧪Support free education & more through Patreon! patreon.com/c/ChemistryinaNutshell
🔬As an Amazon Affiliate, I earn from qualifying purchases at no extra cost to you. Start your shopping here: amzn.to/3IXuAcS
0:00 Elements are in Fixed Ratios
0:20 Example: CuO percent Copper and Oxygen by Mass
3:02 TL;DR of the Example
3:48 What does this mean for the structure of the atom?
4:04 Historically-Plausible Atomic Structure
Citations:
Paula Yurkanis Bruice, "Organic Chemistry" 8th ed
openstax.org/details/books/organic-chemistry
openstax.org/details/books/chemistry-2e
Proust's Law of Definite Proportions explains why compounds always form in fixed mass ratios. This video walks through Proust’s reasoning and how this law supports atomic theory and stoichiometry problems.
Related Units:
If you're studying early atomic theory, watch the full playlist: youtube.com/playlist?list=PLvUW25kBaMMszGN5XY0QXNP_t-9Z-B8C2
If you want a strong foundation for studying chemistry, this playlist is your friend: youtube.com/playlist?list=PLvUW25kBaMMssGHFrR4Ee7_-8cFBvBkgN
If you're studying for the MCAT: youtube.com/playlist?list=PLvUW25kBaMMuJZI5IVWO8X0syBANn-YqY
🧪Support free education & more through Patreon! patreon.com/c/ChemistryinaNutshell
🔬As an Amazon Affiliate, I earn from qualifying purchases at no extra cost to you. Start your shopping here: amzn.to/3IXuAcS
0:00 Elements are in Fixed Ratios
0:20 Example: CuO percent Copper and Oxygen by Mass
3:02 TL;DR of the Example
3:48 What does this mean for the structure of the atom?
4:04 Historically-Plausible Atomic Structure
Citations:
Paula Yurkanis Bruice, "Organic Chemistry" 8th ed
openstax.org/details/books/organic-chemistry
openstax.org/details/books/chemistry-2e
