Calculating retention factors for TLC | AP Chemistry | Khan Academy

[@theashow3387]

thanks man this was very helpful

[@akshatchana8723]

wow. this has really helped me to understand to RF value. thank you so much khan academy.

[@lauren9004]

Interesting. Thanks for the video!

[@justinwhitening4828]

thank you for the help!

[@mariafonseca6358]

this is great ! thank you

[@marinamedinaa]

This is great, makes so much sense, only problem for me is that my prelab doesn't show the solvent line, only the starting line. I guess I'll have to draw one and tell my instructor about it.

[@AltairKasem]

Thank you. That was very useful!!!

[@manaralhindawi2960]

Super useful thnx😊

[@mohammadamiri8596]

In the second chromatography is B more polar or less polar??

[@rabbitwang5841]

it just means compound b spends time equally on mobile phase and stationary phase

[@britneyachu3457]

I was just wondering how a calculations would be done for a 2D TLC plate would be done

[@AlejandraRodriguez-rn1zp]

And the units? cm?

[@shilparajivnair]

Clara Rodriguez no units, because it’s a ratio between two quantities having the same unit

[@medijaairah6348]

Why does in measuring rf it should originate from the center of the band line?

[@antonymp1992]

No it should be from the center of the spot to the base line

[@user-pj3lg5un2b]

i love this, thank you

[@amberchen2416]

THANK YOU SO MUCH helped so much!

[@manaralhindawi2960]

Super useful thnx😊