Sciencemadness Discussion Board
Not logged in [Login ]
Go To Bottom

Printable Version  
 Pages:  1  
Author: Subject: Interesting test of how well you know your labware
Dr.Bob
International Hazard
*****




Posts: 2003
Registered: 26-1-2011
Location: USA - NC
Member Is Offline

Mood: No Mood

[*] posted on 26-3-2015 at 11:20
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.
View user's profile View All Posts By User
DFliyerz
Hazard to Others
***




Posts: 241
Registered: 22-12-2014
Member Is Offline

Mood: No Mood

[*] posted on 26-3-2015 at 11:40


Very fun!
View user's profile View All Posts By User
morganbw
National Hazard
****




Posts: 413
Registered: 23-11-2014
Member Is Offline

Mood: No Mood

[*] posted on 26-3-2015 at 12:27


Thank you for that.
View user's profile View All Posts By User
Sulaiman
International Hazard
*****




Posts: 2708
Registered: 8-2-2015
Location: Walsall UK but on extended Holiday in Malaysia
Member Is Offline


[*] posted on 26-3-2015 at 12:29


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?
View user's profile View All Posts By User
Loptr
International Hazard
*****




Posts: 1291
Registered: 20-5-2014
Location: USA
Member Is Offline

Mood: Grateful

[*] posted on 26-3-2015 at 13:07


Argh! I got one wrong! I meant to click on another but missed it! :-S
View user's profile View All Posts By User
The Volatile Chemist
International Hazard
*****




Posts: 1973
Registered: 22-3-2014
Location: 'Stil' in the lab...
Member Is Offline

Mood: Copious

[*] posted on 26-3-2015 at 14:08


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.



View user's profile Visit user's homepage View All Posts By User
Texium (zts16)
Administrator
********




Posts: 3043
Registered: 11-1-2014
Location: San Marcos, TX
Member Is Offline

Mood: Graduated

[*] posted on 26-3-2015 at 14:30


Got a 96%, missed Strauss flask, as I had never heard of it before. Really cool quiz though! Compound Interest has some nice stuff.



View user's profile Visit user's homepage View All Posts By User
The Volatile Chemist
International Hazard
*****




Posts: 1973
Registered: 22-3-2014
Location: 'Stil' in the lab...
Member Is Offline

Mood: Copious

[*] posted on 26-3-2015 at 14:39


I'd never heard of them before. But the quiz was nice. I missed volumetric flask b/c it looked more Florence style...



View user's profile Visit user's homepage View All Posts By User
aga
Forum Drunkard
*****




Posts: 7029
Registered: 25-3-2014
Member Is Offline


[*] posted on 26-3-2015 at 14:49


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]




View user's profile View All Posts By User
Texium (zts16)
Administrator
********




Posts: 3043
Registered: 11-1-2014
Location: San Marcos, TX
Member Is Offline

Mood: Graduated

[*] posted on 26-3-2015 at 15:34


Quote: Originally posted by The Volatile Chemist  
I'd never heard of them before. But the quiz was nice. I missed volumetric flask b/c it looked more Florence style...
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.



View user's profile Visit user's homepage View All Posts By User
blargish
Hazard to Others
***




Posts: 166
Registered: 25-9-2013
Location: Canada
Member Is Offline

Mood: AZIDES AZIDES AZIDES

[*] posted on 26-3-2015 at 15:52


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
That vigreux column was pretty sketchy




BLaRgISH
View user's profile View All Posts By User
Volanschemia
National Hazard
****




Posts: 340
Registered: 16-1-2015
Location: Victoria, Australia
Member Is Offline

Mood: Pretty much all of them!

[*] posted on 26-3-2015 at 16:15


96% for me.
I missed the Schlenk flask, thought it was a Straus. :P

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.
View user's profile View All Posts By User
Loptr
International Hazard
*****




Posts: 1291
Registered: 20-5-2014
Location: USA
Member Is Offline

Mood: Grateful

[*] posted on 26-3-2015 at 16:30


Quote: Originally posted by TheAustralianScientist  
96% for me.
I missed the Schlenk flask, thought it was a Straus. :P

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.
View user's profile View All Posts By User
cyanureeves
International Hazard
*****




Posts: 723
Registered: 29-8-2010
Location: Mars
Member Is Offline

Mood: No Mood

[*] posted on 26-3-2015 at 16:48


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.
View user's profile View All Posts By User
gardul
HAZARD TO TEH CATZ!
****




Posts: 256
Registered: 18-10-2014
Location: Under the Sun in a beaker
Member Is Offline

Mood: Vivified!

[*] posted on 26-3-2015 at 16:49


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?
View user's profile View All Posts By User
Chemosynthesis
International Hazard
*****




Posts: 1071
Registered: 26-9-2013
Member Is Offline

Mood: No Mood

[*] posted on 26-3-2015 at 17:11


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.
View user's profile View All Posts By User
IrC
International Hazard
*****




Posts: 2710
Registered: 7-3-2005
Location: Eureka
Member Is Offline

Mood: Discovering

[*] posted on 26-3-2015 at 18:38


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
View user's profile View All Posts By User
diddi
International Hazard
*****




Posts: 719
Registered: 23-9-2014
Location: Victoria, Australia
Member Is Offline

Mood: Fluorescent

[*] posted on 26-3-2015 at 18:55


missed the Friedrich's condenser :(




Beginning construction of periodic table display
View user's profile View All Posts By User
Hellafunt
Hazard to Self
**




Posts: 65
Registered: 2-12-2014
Member Is Offline

Mood: No Mood

[*] posted on 26-3-2015 at 23:34


wow, what a great website, thank you for posting that. ive been looking at that website for the last 2 hours!
View user's profile View All Posts By User
Jylliana
Hazard to Others
***




Posts: 126
Registered: 3-10-2014
Location: The Netherlands
Member Is Offline

Mood: Bubbly ^-^

[*] posted on 26-3-2015 at 23:41


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 :)




24/f/nl
Analytical Chemistry.

Al, Br, Cu, Hg, S, C, Ag, Na, Pb, I, Cd, Ga, P, Mg, Fe, Be, Au, Bi, Si.
View user's profile Visit user's homepage View All Posts By User
Dr.Bob
International Hazard
*****




Posts: 2003
Registered: 26-1-2011
Location: USA - NC
Member Is Offline

Mood: No Mood

[*] posted on 27-3-2015 at 04:57


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.
View user's profile View All Posts By User
Molecular Manipulations
National Hazard
****




Posts: 447
Registered: 17-12-2014
Location: The Garden of Eden
Member Is Offline

Mood: High on forbidden fruit

[*] posted on 27-3-2015 at 08:54


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
We are all here on earth to help others; what on earth the others are here for I don't know. -W. H. Auden
View user's profile View All Posts By User
Praxichys
International Hazard
*****




Posts: 1022
Registered: 31-7-2013
Location: Detroit, Michigan, USA
Member Is Offline

Mood: Coprecipitated

[*] posted on 27-3-2015 at 09:00


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.




View user's profile Visit user's homepage View All Posts By User
The Volatile Chemist
International Hazard
*****




Posts: 1973
Registered: 22-3-2014
Location: 'Stil' in the lab...
Member Is Offline

Mood: Copious

[*] posted on 27-3-2015 at 09:31


Quote: Originally posted by blargish  
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
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! :))




View user's profile Visit user's homepage View All Posts By User
Texium (zts16)
Administrator
********




Posts: 3043
Registered: 11-1-2014
Location: San Marcos, TX
Member Is Offline

Mood: Graduated

[*] posted on 28-3-2015 at 06:40


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.



View user's profile Visit user's homepage View All Posts By User
 Pages:  1  

  Go To Top