General Thoughts: Chemistry (1 Viewer)

Rawf

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I said use a hot plate or a heating mantle as alkanols and alkanoic acids are flammable, and are therefore dangerous to use with a bunsen burner.
or something like that
Oh... uh oh. I said to reflux and user a condenser so the products and reactants aren't lost - these can be toxic and to perform it in a fume cupboard. do you think i'd still get the mark? how many marks was that question worth?
 

nicolaas

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did anyone do forensic chemistry? and if so what are ur thoughts on it especially teh 7 marker
 

someth1ng

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Didn't it ask for one safety precaution that was specific to the experiment (esterification), that is, refluxing?

I did reflux because the products are volatile and flammable - posing a safety risk.
 
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hnnhp

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I stared at that equilibrium multiple choice question for about 5 minutes until I finally saw the third line. I am so blind.
Overall not bad but the fuck was that extended response?
What was the answer? I just guessed lol
 

kdizzler

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I spent about a page trying to solve otherwise. But mg/L is in ppm and mg/kg is also in ppm. I think it may have been a troll question...
I don't think it was a troll question, as mg/L refers to the concentration of the sample but mg/kg refers to the concentration per kg of fish
 

ellie95

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If anyone did industrial chem, what was the k value? I got 2450 however my teacher said its around 0.9
 

SchoolIsBoringg

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zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

so sad for you all choosing the most boring subjects
 

crazy_paki123

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your right, i recall getting 2450ish, nearly all the reactant is consumed
lol, i got 0.96... aswell (same as your teacher) but this is wrong, ill get 2/3, but the correct answer is your answer due to the 2:1 ratio resulting in k=2450
 

SandyS1995

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Pretty easy. I spent 1 hour on the mercury question though but I got the right answer so I'm happy bout that. ^.~
The only question I couldn't answer was the scientist question so I know I'll get 0/6 for that.
 

nerdasdasd

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Pretty easy. I spent 1 hour on the mercury question though but I got the right answer so I'm happy bout that. ^.~
The only question I couldn't answer was the scientist question so I know I'll get 0/6 for that.
Did you use the gradient ?
 

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