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linktree Biology Forums - For All Your Science Needs  »  Homework Help (University / College Level)
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Physioex 9.0 osmotic pressure
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jdmking18
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Aug 27, 2011
Why is it when you increase the concentration of NaCl, the osmotic pressure of a solution increases? why does it has this effect?

ref: physioex 9.0 ex. 1, activity 3, question 1

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Physioex 9.0 osmotic pressure
Aug 27, 2011

my prediction is the more impermeable the solute, the higher the osmotic pressure will be, thus explaining why the osmotic pressured increased, when the concentrated of NaCl increased when i did the lab simulator. True?



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Physioex 9.0 osmotic pressure
Aug 27, 2011

Increasing the number of non-diffusible particles increases osmotic pressure. If solutes are able to diffuse, then equilibrium will be established and osmotic pressure will not be generated. Osmotic pressure would be zero if albumin concentration was the same on both sides of the membrane.

This is from PhysioEx 8, I'm assuming PhysioEx 9 is the latest edition, I gotta get on that Smile



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Physioex 9.0 osmotic pressure
Aug 27, 2011

yeah, it's latest version. Thanks for your input!

Also, what does it mean by " water chases milliosmoles?



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Physioex 9.0 osmotic pressure
Aug 27, 2011

Think, "water chases osmoles" to visualize which direction the water flows. Each osmole displaces approximately 1 mole of water.



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Physioex 9.0 osmotic pressure
Aug 27, 2011

No instructors guide exists for this version, I think.

Edit: it will be available in 5 days! Smile



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Physioex 9.0 osmotic pressure
Aug 27, 2011

ah..that make sense.
Yup, that's the same manual I'm using; it's fairly new



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Physioex 9.0 osmotic pressure
Aug 27, 2011

Quote
ah..that make sense.
Yup, that's the same manual I'm using; it's fairly new

News: the instructors guide will be available by the end of this month!



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Physioex 9.0 osmotic pressure
Aug 27, 2011

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Physioex 9.0 osmotic pressure
Aug 27, 2011

so, I'm trying to comprehend what you said,"Water chases milliosmoles." It means to visualize which way water flows. Can you explain it in further detail for me? I'm having a hard time comprehending it



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