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Video Solution: Give the IUPAC name for each of the following compounds: (a...

Problem

Give the IUPAC name for each of the following compounds:

(a) CH3(CH2)25CH

Video Transcript

Hey everyone. So, in this question is ur job to get the IUPAC name for the compound given. Now, here what we recognize is yeah, you saw, right? This was a 25 attached to this methylene group, right? The CH2 and what we notice is that, what do you think this is going to look like? This is going to be a long 27 carbon alkane, right? Because we have 25 of those CH2 groups and then two methyls. So, I'm not going to draw the whole thing out but essentially this is going to be, remember, a CH3 and then attached to CH2, CH2, CH2 and so forth, right? There's going to be a lot more of that going on, so in order to naming this, we actually, maybe you guys do not know and that is totally alright but 20 to 29 carbons, when we have that many carbons is going to get the root of cosane, okay? same thing as 10 to 19 would be decane and for example what would you call a 15 carbon alkane chain? 15 carbon right? would be decane, we need to add in a prefix of penta for 5, so if we said this one would be cosane, how would we name 27 carbons long? This would be cosane, okay. And then what's the prefix for 7? Not hex, that's six, heptane, right? this would be hepta cosane, okay. So, this is actually the IUPAC name for a 27 carbon long unbrached carbon chain, okay? So, I hope this made sense and let me know if you have questions.

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