College Chemistry Help

Question

So im trying to understand Line drawing structure better since im really confused on how to go about it on some formulas.

How would i do a line drawing structure or condensed structural formula for

3-pentyne (On this one i wrote the condensed formula but im not sure if its correct or not, so id like to be able to compare my answer to some else's)

2-methyl-4-bromohexane

3-ethyl-2-pentene

thank you

Answer 1

Hello, Gabrielle,

There is an online graphics program that builds 3D models out of compounds you enter. I loaded a brief explanation and sample image for 3-pentyne onto a Google drive: https://drive.google.com/file/d/1ZpwQxmrgy-E8wCZUysWuAAxsu66-gWz9/view?usp=sharing

Bob

Answer 2

I don't know how I can "draw" in this program, but I can give you an idea of the correct answers. First of all, 3-pentyne is incorrectly named as the triple bond would be between the 2nd & 3rd carbon atoms≡≡≡ which would look the same if it were between the 3rd & 4th C-atoms and we want the lowest possible number assigned to the triple bond. So, CH₃C ≡ CCH₂CH₃

2-methyl-4-bromohexane would be CH₃CH(CH₃)CH₂CH(Br)CH₂CH₃

3-ethyl-2-pentene is CH₃CH = C(CH₂CH₃)CH₂CH₃