A couple of suggestions: don't touch the paper. In this experiment, it doesn't matter. In other experiments, you may find skin oils on the paper which could confuse the interpretation. Also, cover your beaker with a watch glass. Your Rf values are only valid if the solvent is not evaporating to a large degree from the paper as it rises up the paper. Otherwise, very well presented.
First Mrs. Allen and Mr. Foote convince me to get a facebook account, and now this. Hooray for technology: I'm going to have to use it all eventually. At least I won't need to use skype to talk with Mrs. Whiteford like Matt will.
how come you didnt need make a solution of pigments like its normally done?
themoviesounds 1 day ago
did he just say rf stands for retardation factor
theairborne145 2 days ago
A couple of suggestions: don't touch the paper. In this experiment, it doesn't matter. In other experiments, you may find skin oils on the paper which could confuse the interpretation. Also, cover your beaker with a watch glass. Your Rf values are only valid if the solvent is not evaporating to a large degree from the paper as it rises up the paper. Otherwise, very well presented.
BuickDoc 3 months ago
thank you this helped me with my ap bio lab!
thenameiselena 3 months ago
very helpful video! Thanks!
B3RZERK94 3 months ago
please add subtitles and get a better camera for hd (cant see zitz on your face)
Jarmastertyler 4 months ago
please add subtitles
Jarmastertyler 4 months ago
@labcast
where can i find Chromatography paper???
please answer. thanks!
morgaknight 5 months ago
@morgaknight you can use filter paper.
BuickDoc 3 months ago
what about anthocyanin or is that only found in flowers and fruits?
madman3247 7 months ago
finny is the man
kykillerful 1 year ago
Hey Mr Tolmie i watched it good hw.
qcumbers23 1 year ago
THANK YOU -this help with my chemistry - Jay Lewis ---out
CRUFF YUTE
lolomgipwnyou 1 year ago
Hi Mr Mahikihoolamara i watched it.
sailtheseaofcheese 2 years ago
you were suppose to cover the top
staples7878 2 years ago
2,429 cies? impressive!
vandersarvardar1 2 years ago
hey i watched and thoroughly enjoyed-christian bryant
vandersarvardar1 2 years ago
First Mrs. Allen and Mr. Foote convince me to get a facebook account, and now this. Hooray for technology: I'm going to have to use it all eventually. At least I won't need to use skype to talk with Mrs. Whiteford like Matt will.
~Joshua H.
FairIsForTaxis 2 years ago
Hey is Mr. Sowash
I watched it.
-Kristen
Misskbriggs9495 2 years ago
hi swash, i watched it
Bradley Hamilton
randomrunner12492 2 years ago
can we apply the same method to find out the pigments of natural dyes coz i want to do it for spinach and turmeric dyes
coolbratzroc 2 years ago
Comment removed
dragonxneo 2 years ago
i rearly enjoyed it it helped me alot with my school work thank you
omanyte2 3 years ago