Stephanie Cervino When the entire molecule's overall net charge is 0, which it is in this case, then it is preferred to have formal charges of 0 for each atom. Does that make sense? 

Yes that is correct, Cl is a good leaving group this is why it leaves to make room for the reformation of the S=O bond. 

Yes, since the Williamson Ether Synthesis proceeds via an SN2 mechanism, the nucleophile will indeed perform a backside attack on the electrophile (typically a primary alkyl halide or tosylate).

Hi Alicia, 

You can download the functional groups list pdf below the description of this video. 

Good catch! Yes that is correct, our apologies for the mistake, we'll have this fixed.

Good catch! Yes that is correct, our apologies for the mistake, we'll have this fixed.

Thank you for letting us know, we will fix this 👍

You'll find the chart with the electron and molecular geometry tables as a downloadable pdf under the description of the video. We don't have downloadable lecture slides at this time due to copyright reasons but we are looking into ways to add more downloads on videos. For now we are adding important templates and charts as downloads and you'll find our practice exams and study with us series with downloadable pdfs. 

Thank you for your feedback, we appreciate it! 

Thank you for bringing this to our attention, we will look into this. Several of our videos have captions but some of our older ones do not. We are working on fixing that. So sorry about that!