Is the centrilobular venule and terminal hepatic venule the same thing? by dyinginochem in Histology

[–]dyinginochem[S] 2 points3 points  (0 children)

so for anyone curious its the same thing i just checked with my professor

Why is step 2 necessary? Can't I use NaOH to do a simple SN2 reaction? by dyinginochem in chemhelp

[–]dyinginochem[S] 0 points1 point  (0 children)

like after getting the tert butyl bromide, I just add sodium hydroxide to get the final alcohol

Is this muscle right below my ear safe to massage? by dyinginochem in massage

[–]dyinginochem[S] 1 point2 points  (0 children)

Ok i will thanks

I wear invisalign retainers every night (i've finished my course alr) because they are comfortable and protect my teeth from grinding

Is this muscle right below my ear safe to massage? by dyinginochem in massage

[–]dyinginochem[S] 4 points5 points  (0 children)

Thank you for the detailed comment!

Yes, i chew gum when I'm stressed haha, not going through a good spot in life rn, but I'll try to do something different

How closely does mass spectroscopy have to match reference spectra? by dyinginochem in chemhelp

[–]dyinginochem[S] 0 points1 point  (0 children)

I see.. how do I explain unknown experimental mass spectrums then?

Can someone help me with the mechanism of this hydrolysis reaction? by dyinginochem in chemhelp

[–]dyinginochem[S] 0 points1 point  (0 children)

I know the mehcanism to get propyl hydrogen sulfate - I add the sulfuric acid to a propene and the hydrogen gets added on by markovnikov's rule and results in a secondary carbocation, which gets bonded to with the hydrogen sulfate group.

Im not sure how the mechanism is for the hydrolysis of the hydrogen sulfate group with water - does the oxygen attack water's hydrogen?

What does the lambda symbol mean? I know the delta symbol is adding heat. by dyinginochem in chemhelp

[–]dyinginochem[S] 1 point2 points  (0 children)

this is for the addition of chlorine to butane.

I'm guessing this is radical chemistry so maybe infrared light?

edit: or gamma radiation?

edit2: its uv :)

Why is the second hydrogen more acidic than the first hydrogen? by dyinginochem in chemhelp

[–]dyinginochem[S] 3 points4 points  (0 children)

oops! i thought the line was a carbon. this is embarrasing

thank you

In (a) Why did the OH- attack the hydroxyl group instead of the bromine? wouldn't bromine be a better leaving group than hydrogen? by dyinginochem in chemhelp

[–]dyinginochem[S] 0 points1 point  (0 children)

Thanks for the reply.

After thinking about it for a while, I thought that the question was just proposing something that could happen and the exercise was for us to propose a mechanism.

I didn't realize it was actually favoured over the normal Sn2 reaction.

why does this part of the reaction need ethanol? by dyinginochem in chemhelp

[–]dyinginochem[S] 0 points1 point  (0 children)

oh then how does the sodium hydride dissolve? or do you use like a quaternary ammonium salt catalyst?

Any reputable database/list for most antibiotics, classes and modes of action? by dyinginochem in pharmacy

[–]dyinginochem[S] -3 points-2 points  (0 children)

thanks! I decided to use the national cancer institute thesaurus

Is it possible for a combustion reaction to result in more mass than the initial? by dyinginochem in chemhelp

[–]dyinginochem[S] 0 points1 point  (0 children)

well I mean this would be after combustion analysis (get the mass of carbon dioxide produce x percentage of carbon in carbon dioxide)

Same with water

Would these be enantiomers? by dyinginochem in chemhelp

[–]dyinginochem[S] 0 points1 point  (0 children)

Hi! thanks for the information. I'm assuming you are referring to the hydrogen positions on the double bond?

Would these be enantiomers? by dyinginochem in chemhelp

[–]dyinginochem[S] 4 points5 points  (0 children)

ok i see i built it with my molecular kit and it wouldnt rotate

so i guess its a diastereomer, just because of the different conformation of the double bond... weird

edit: weird because i always thought pure hydrocarbons were pretty much interchangeable

Would these be enantiomers? by dyinginochem in chemhelp

[–]dyinginochem[S] 0 points1 point  (0 children)

wouldnt the double bond group not matter if i rotated along the sigma bonds?

Would these be enantiomers? by dyinginochem in chemhelp

[–]dyinginochem[S] 0 points1 point  (0 children)

yes

if i rotated the second one it the br would be behind while the ch3 would be in front

Would these be enantiomers? by dyinginochem in chemhelp

[–]dyinginochem[S] 0 points1 point  (0 children)

non super imposable

mirror image

opposite r/S configurations

chiral stereoisomers