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Dr.Bob
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Interesting test of how well you know your labware
http://www.compoundchem.com/glasswarequiz/
I got a 96%, but they have one graphic that is terrible, so it should not count. But I had to guess a few of them, but could elimate most answers,
so not too hard. But it is an amusing test.
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DFliyerz
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Very fun!
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morganbw
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Thank you for that.
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Sulaiman
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I got 93%,
one mistake (Friedrich's condenser, not Graham)
one correct guess (Straus flask)
one wrong guess (Kjeldahl flask)
does anyone still use thistle funnels?
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Loptr
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Argh! I got one wrong! I meant to click on another but missed it! :-S
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The Volatile Chemist
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I got a 76%, but then again, according to the world's standards (not those at SM) I'm doing OK having only taken Honors Chem. I only guessed on 2. I
just generally mistook a few of them. Real pictures would've been better.
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Texium
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Got a 96%, missed Strauss flask, as I had never heard of it before. Really cool quiz though! Compound Interest has some nice stuff.
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The Volatile Chemist
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I'd never heard of them before. But the quiz was nice. I missed volumetric flask b/c it looked more Florence style...
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aga
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I got 76%. Damnit !
The drawing of a Vigreux was nothing like the two i have.
The others i simply got wrong because i did not know.
We'll never mention the two or three i got right by guessing, ever ...
[Edited on 26-3-2015 by aga]
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Texium
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It definitely did look rather, err, Florentine, but because it was shown filled halfway up the neck and had a stopper, I inferred
that it was supposed to be volumetric. Also not really sure why they put both test tube and boiling tube on there when they look identical.
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blargish
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Scored a 93
I've never seen a Straus or Kjeldahl flask before...
There were also a couple that I knew the names of, but didn't know their application! ![:D](./images/smilies/biggrin.gif)
That vigreux column was pretty sketchy
BLaRgISH
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Volanschemia
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96% for me.
I missed the Schlenk flask, thought it was a Straus. ![:P](./images/smilies/tongue.gif)
It's funny how much a retort flask is used in chiche depictions of a lab, but it is hardly ever used anymore.
"The chemists are a strange class of mortals, impelled by an almost insane impulse to seek their pleasures amid smoke and
vapor, soot and flame, poisons and poverty; yet among all these evils I seem to live so sweetly that may I die if I were to change places with the
Persian king" - Johann Joachim Becher, 1635 to 1682.
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Loptr
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Quote: Originally posted by TheAustralianScientist ![](images/xpblue/lastpost.gif) | 96% for me.
I missed the Schlenk flask, thought it was a Straus. ![:P](./images/smilies/tongue.gif)
It's funny how much a retort flask is used in chiche depictions of a lab, but it is hardly ever used anymore. |
They also tend to be very expensive. I would like to have one, but have held off due to the prices.
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cyanureeves
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i got a 70 and that's not bad at all for never have taken a single chemistry course.i'm sure everyone i know couldn't name a single one of those. i
will pat my back now.
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gardul
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I got a 90% not to shabby. but i'll be honest, while I knew what most of the item were some of the pictures were awful. Vigreux picture is awful in my
opinon. I have a few of these colums and they look nothinglike that. but nothing on that list would have made sense. thank you for this little test.
I just made you read this very pointless signature. How does it feel?
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Chemosynthesis
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That was fun. I think the test would be much easier if the pictures were larger by default. I managed to get them all, but that one column I presume
you guys are talking about was a horrible depiction, not that any of them were all that great. The warnings here made me particularly careful. Using
two answers which appear similar to me on that one was just cruel. I also only got the solvent drying flask (trying not to spoil it) because it had
been mentioned here. I don't believe I have ever seen one in person, though I have seen solvent stills that were not single piece, attached to inert
named lines and the more generalized version of the flask itself which was also a question, so I was able to infer the actual item identity itself
since it came up here and was presumably a utilized answer. The flask with the long neck is kind of inspiring for me to try to replicate an early
1900s total nitrogen content analyses I had been putting off, though I don't own on specifically for that yet. Not sure how necessary a specific
length is.
Additionally, there was one response that wasn't utilized that threw me. I knew it wasn't the answer, but I didn't know what it was. I don't want to
use the name, again, due to spoilers, but it is a flask with indentions on it. I have seen them lying around labs before, but was not really sure what
they are used for until I searched the Royal Society of Chemistry's site and found they were developed for organosodium chemistry. Very interesting.
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IrC
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Very good link. Don't do just the test and leave. Look at the very large number of articles and information, click on Archives and
Downloads. Spend some time studying what they have on the site. I had to bookmark it as it will take a long time to get through so much interesting
information.
"Science is the belief in the ignorance of the experts" Richard Feynman
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diddi
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missed the Friedrich's condenser ![:(](./images/smilies/sad.gif)
Beginning construction of periodic table display
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Hellafunt
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wow, what a great website, thank you for posting that. ive been looking at that website for the last 2 hours!
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Jylliana
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93%
Got my condensers mixed up. I never call them by their name xD
I got the graph that went with it earlier in the mail. I have a subscription to CI's newsletter
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Dr.Bob
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Their Freidrich's is not drawn correctly, it shows water coils, but a true Freidrich's has only one main water tube with swirls in it, so they are not
really correct either. But their site is very nice, and I had never seen it before. Glad it was helpful.
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Molecular Manipulations
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93%. I've away's worked with improvised apparatus, so I don't know all of the names for glassware. They should have used real pictures, I got at least
one wrong because it looked different than mine.
[Edited on 27-3-2015 by Molecular Manipulations]
-The manipulator
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Praxichys
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96%
Had to guess on the Straus flask question, guessed incorrectly. I have always called those 'solvent flasks.'
+1 to Dr. Bob on the Freidrichs condenser drawing. The 105 deg angled take-off was the giveaway. Otherwise it's just a coil condenser.
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The Volatile Chemist
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Quote: Originally posted by blargish ![](images/xpblue/lastpost.gif) | Scored a 93
I've never seen a Straus or Kjeldahl flask before...
There were also a couple that I knew the names of, but didn't know their application! ![:D](./images/smilies/biggrin.gif)
That vigreux column was pretty sketchy |
Lol, I like the pun at the end (sketchy)
I knew what a kjeldahl flask was b/c I'd seen one on Elemental Scientific (Thanks Tom Holm! )
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Texium
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Kjeldahl flasks are primarily used in the brewing industry, as that's what they were invented for (Kjeldahl was the lab manager for the Carlsberg
brewery), as well as other food industries. It just so happens that my parents work at a brewery, and I have familiarized myself with the analysis
procedures run in their lab, one of which is called TKN, or total Kjeldahl nitrogen. The process involves first digesting the organic substance to be
tested using sulfuric acid and potassium permanganate, to convert all of the nitrogen to ammonium, then raising the pH to convert the ammonium to
ammonia, then distilling the ammonia (using a Kjeldahl flask as the boiling flask, although I'm not entirely sure why this is important) to make a
clean solution, which is then titrated, to determine the total moles of organic nitrogen in the sample.
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