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/sci/ - Science & Math


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4611328 No.4611328 [Reply] [Original]

ask an experienced chemist anything

>> No.4611338

What's your opinion on peak oil?

>> No.4611341 [DELETED] 

Are qualia physical or non-physical?

>> No.4611349

What happens when a sun made of lava and a sun made of ice collide at 0.999... c ?

>> No.4611409

Why is manganate used in alkaline conditions to oxidize methyl benzene to benzoic acid instead of acidic conditions?

>> No.4611417
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4611417

>>4611338
i have none to be honest
>>4611341
it depends on who u ask some say physical others say non my personal opinion is non>>4611349
stars are made of plasma sir

>> No.4611470
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4611470

>>4611409
To expand as you can see in the second diagram the ethyl group's bond is broken and then is oxidized to form benzoate. Why does this only work in alkaline conditions?

>> No.4611471
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4611471

>>4611409
Remember that benzene, methylbenzene and similar hydrocarbons based on benzene rings are collectively known as arenes.
Alkyl groups are usually fairly resistant to oxidation. However, when they are attached to a benzene ring, they are easily oxidised by an alkaline solution of potassium manganate(VII) (potassium permanganate).

Methylbenzene is heated under reflux with a solution of potassium manganate(VII) made alkaline with sodium carbonate. The purple colour of the potassium manganate(VII) is eventually replaced by a dark brown precipitate of manganese(IV) oxide.
The mixture is finally acidified with dilute sulphuric acid.
Overall, the methylbenzene is oxidised to benzoic acid.

>> No.4611473

wut did u study?

>> No.4611484

>>4611471
Manganate is a stronger oxidizing agent in acidic solution.

>> No.4611509
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4611509

>>4611473
>>4611473
>>4611473
>>4611473
>>4611473
>>4611473
refer to >>4611328
>>4611328
>>4611328
>>4611328
>>4611328
>>4611328
>>4611328
>>4611328
>>4611328
>>4611328

>> No.4611518

What do you do for a living? Do you enjoy it?

Also, did you enjoy studying chemistry? What kind of degree do you have?

Any advice for someone studying chemistry in university?

Thanks.

>> No.4611774

I've taken a couple chemistry classes, but it's not my major. Any books you'd recommend to someone who wants to learn more, but probably won't take more classes?

>> No.4611788

How much energy is required to create a synthetic star using a magnetized sphere, pressure system, with an iron core surrounded by Tritium?
As in, the flash point at which the broken down Tritium+H3+other crap will ignite in a fusion reaction?

>> No.4611813

>>4611788
It is being blasted with a proton beam at the core at any given time by the way.

>> No.4612075

Why does my first year chemistry class bore me and involve no math other than simple shit and when do I get into cool stuff?

>> No.4612109

Why is chemistry so fucking trivial?

>> No.4612125

I'm thinking about majoring in Chemical Engineering.

What's it like?

>> No.4612132

What do they do to chemists when they die?

They barium.

>> No.4612135

What oxidation levels can copper take and when?

>> No.4612164

Where did you go?