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Topic: osmosis !!  (Read 3483 times)

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Offline HusamEddin

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osmosis !!
« on: December 26, 2012, 09:07:40 AM »

1- what will happen to the glucose solution in the A column (increase - decrease - nothing)
2- what will happen to the Copper sulfide in the B column (increase - decrease - nothing)

I suggest the answers will be:
1- nothing
2- increase


what are the correct answers ?


thanks :)

Offline Arkcon

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Re: osmosis !!
« Reply #1 on: December 26, 2012, 10:15:13 AM »
That really will depend on what is actually being done.  You haven't provided up with the reaction setup, or anything useful at all.
Hey, I'm not judging.  I just like to shoot straight.  I'm a man of science.

Offline fledarmus

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Re: osmosis !!
« Reply #2 on: December 26, 2012, 10:23:14 AM »
I think the assumption is that no reaction is happening, only osmosis.

However...

Quote
what are the correct answers ?

It doesn't work that way here - you tell us what you think the answer is and provide your reasoning, and we try to help you find the answer.

Offline HusamEddin

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Re: osmosis !!
« Reply #3 on: December 26, 2012, 11:08:52 AM »
no no no I'm not talking about any reaction
just a notmal osmosis < and what happens to the the percentages of the salt and glucose after osmosis

Offline Arkcon

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Re: osmosis !!
« Reply #4 on: December 26, 2012, 03:33:20 PM »
Great, now that we have the image, we know something important for the question.  Now, what can you guess is likely to happen in each case?  For example, if there weren't a membrane, but a solid wall, you wouldn't expect any change.  If there were no membrane, just open space, you'd expect the solutions to mix. Given the membrane you have, what can, and what can't change?
Hey, I'm not judging.  I just like to shoot straight.  I'm a man of science.

Offline curiouscat

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Re: osmosis !!
« Reply #5 on: December 26, 2012, 10:38:56 PM »
Are any of the Copper Sulfides substantially water soluble? Getting a 2.5% solution might be a tad hard.

Offline HusamEddin

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Re: osmosis !!
« Reply #6 on: December 26, 2012, 11:48:46 PM »
Great, now that we have the image, we know something important for the question.  Now, what can you guess is likely to happen in each case?  For example, if there weren't a membrane, but a solid wall, you wouldn't expect any change.  If there were no membrane, just open space, you'd expect the solutions to mix. Given the membrane you have, what can, and what can't change?
copper sulfide will go to the right side < and water will go also to the right side !!!
so glucose solution will still 60% in the right side?
and copper sulfide will be less than 2.5% in the left side ?

Offline fledarmus

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Re: osmosis !!
« Reply #7 on: December 28, 2012, 02:35:47 PM »
If both water and copper sulfide are going to the right side, what does that do to the concentration of the glucose on that side?

Offline HusamEddin

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Re: osmosis !!
« Reply #8 on: December 31, 2012, 11:14:14 AM »
If both water and copper sulfide are going to the right side, what does that do to the concentration of the glucose on that side?
concentration of the glucose will decrease by increasing the column of the water ...
so the answer will be ... "decrease"
right ?

Offline fledarmus

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Re: osmosis !!
« Reply #9 on: January 01, 2013, 09:56:47 AM »
That would be my answer  ;D

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