Using esters - making soap and biodiesel

Wash up with this video. Take a look to find out the chemical reaction of saponification and how the soap works. Just to balance it out there is also a look at biodiesel, a good use of old cooking oil.

[@mcpizzle.shanizzle1025]

still helpful after 10 years
Thank you!

[@AlleryChemistry]

You're welcome!

[@moomarn1797]

Thank you so much for these videos! They have been super helpful :)

[@AlleryChemistry]

You're very welcome!

[@Masculinity-]

thank youuuuu so much!!!!! the videos are actually helpful...

[@AlleryChemistry]

Glad you like them!

[@RimazAboelgasim]

Do we have to learn the whole soap structure?

[@William.Hollier]

Great Video

[@chrispeleties3200]

Hi, I am a bit confused about the soap part. You circled the O- group as hydrophillic but everywhere i've looked it says that the COO- group is hydrophillic and the rest of the hydrocarbon chain is hydrophobic

[@2h_2n]

Yes I think it’s an error too. I forgive him though cause his other videos are brilliant.

[@or8977]

Shouldnt the Oxygen in the ester be part of the carboxylic acid? I see u made it a part of the triglyceride in the drawing

[@2h_2n]

Agreed - glad it’s not just me that sees the glycerol looses the OH not just the H. Also the ester can’t lose the O the ion can’t exist in that form.
To be fair this error is all over the internet even in the CGP A level revision book. Have to search far and wide to find it correct. I trust Chemguide.

[@KyleKyle__]

Murr teaching a level chem