Playlist · Freesciencelessons
A Level Chemistry (Year 13) "Reactions of Aldehydes and Ketones"
Total watch time
27m 4s
at 1× speed · exactly 27 minutes, 4 seconds at 1×
The shape of the course
Each column is one video, to scale
WatchedTo watch
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Videos (7)
27m 4s in total · tick what you've watched
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For your README
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[](https://playlistduration.com/playlist/PL9IouNCPbCxWdf--oCOiif4FXhdHxf-Tm)<a href="https://playlistduration.com/playlist/PL9IouNCPbCxWdf--oCOiif4FXhdHxf-Tm"><img src="https://playlistduration.com/badge/playlist/PL9IouNCPbCxWdf--oCOiif4FXhdHxf-Tm.svg" alt="Watch time: 27m 4s · 7 videos" width="195" height="20"></a>Add ?speed=1.5 to the image URL for the time at that speed, ?label=Course to change the left text, or ?style=flat-square for square corners.
Want the numbers themselves? GET https://playlistduration.com/api/v1/playlist/PL9IouNCPbCxWdf--oCOiif4FXhdHxf-Tm returns them as JSON — free, no key. API docs →
Data from the YouTube Data API as of 2026-10-27 (cached). Private or deleted videos are excluded from totals.