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natalie26 · Feb 22, 2010, 02:21 PM

Assume that if iodine is allowed to migrate freely between equal volumes of water and kerosene, 90% of it will end up in the kerosene and 10% in the water. If you started with 1.0g of iodine total in the water layer, and extraceted with an equal volume of kerosene how much iodine would remain in the water?

If you then discard the kerosene layer and extracted with another equal volume of fresh kerosene how much iodine would be left in the water?

What total percent of the iodine was removed from the water?

Please help me with all three questions and if you can show me the work.! Thanks!

Wondergirl · Feb 22, 2010, 02:23 PM

No. YOU do the work and show us what you did, and we will tell you if and where you went wrong with your reasoning and calculations.

natalie26 · Feb 22, 2010, 02:31 PM

I would but I don't even know how to staart it :(

Wondergirl · Feb 22, 2010, 02:50 PM

First, draw a picture.

Wondergirl · Feb 22, 2010, 03:00 PM

Have you done this in a lab?

natalie26 · Feb 22, 2010, 03:02 PM

Yeah we did it in lab last week. But since I'm a visual learner its hard for me to do it the math way.. if that makes sense.

Wondergirl · Feb 22, 2010, 03:04 PM

Did you take notes about what had happened?

natalie26 · Feb 22, 2010, 03:16 PM

I did but we turned them in!! Grrrrr

Wondergirl · Feb 22, 2010, 03:28 PM

Originally Posted by natalie26

i did but we turned them in!!! grrrrr

Are you in Maricopa Co.

Wondergirl · Feb 22, 2010, 03:29 PM

Originally Posted by natalie26

i did but we turned them in!!! grrrrr

How does your teacher expect you to do this homework without your lab notes?

natalie26 · Feb 22, 2010, 03:29 PM

Yes I am

Wondergirl · Feb 22, 2010, 03:37 PM

In the lab, did you pour 3 ml of kerosene into a test tube and add an equal volume of iodine-saturated water, stopper the tube and shake (1st extraction)?