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a-man
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Quick question

Post by a-man » Sun Oct 23, 2005 9:08 am

say you put a potato chip in a beaker of known water solution
now if you double that solutions volume (not changing the concentration of the solution), will there be a change in the rate of osmosis?

my teacher said volume is a variable in osmosis, but i odnt see how, as the surface area/distance/different in WP are not changing.

any help wil be greatly appreciated

thanks

fatchui
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Re: Quick question

Post by fatchui » Sun Oct 23, 2005 10:07 am

a-man wrote:say you put a potato chip in a beaker of known water solution
now if you double that solutions volume (not changing the concentration of the solution), will there be a change in the rate of osmosis?

my teacher said volume is a variable in osmosis, but i odnt see how, as the surface area/distance/different in WP are not changing.

any help wil be greatly appreciated

thanks


:D I don't think that the rate of osmosis will be changed as long as the concentration of the solution is unchanged. The key factor should be water potential, which is independent of the volume of the solution used, especially when it is distilled water.

Your teacher's statement that water is one of the variables in determining the rate of osmosis is just a general rule, which should not be applicable here. :)

a-man
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:D

Post by a-man » Sun Oct 23, 2005 10:16 am

:D thanks or replying! yup i think your right, it doesnt have any effect. perhaps im just a bad note taker! thanks!

baikuza
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Post by baikuza » Mon Oct 24, 2005 3:03 pm

hei.. did u put the potato in the water for a long time?
i think it work(ur experiment) but it's just a little bit of differences(volume,++)

why don't u try in water with 80% or more of glucose or sukrose?
it should make potato become different than before we put it in.

:wink: hope this help.

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