General Thoughts: Chemistry (1 Viewer)

[Rawf]

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]

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

 

[someth1ng]

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.

 

[someth1ng]

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

Wasn't so bad but I'm not sure about the distinguishing test - I did reducing/non-reducing sugars.

 

[hnnhp]

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]

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]

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

 

[Nader95]

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

your right, i recall getting 2450ish, nearly all the reactant is consumed

 

[SchoolIsBoringg]

zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

so sad for you all choosing the most boring subjects

 

[crazy_paki123]

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]

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]

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 ?