Questions tagged [osmosis]
the spontaneous net movement of solvent molecules through a semi-permeable membrane into a region of higher solute concentration, in the direction that tends to equalize the solute concentrations on the two sides.
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Why does sugar water diffuse better than water through a gummy bear?
Our science class did a lab about osmosis, where we left a gummy bear in solutions of salt and sugar, as well as tap water. When we came back, we were all surprised to see that our gummy bears in ...
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Is Reverse Osmosis Sanitizer safe to use? [closed]
The Sanitizer is called Sani-System (For Reverse Osmosis). The purpose is to get rid of the bacteria within a Reverse Osmosis system (Priority is the tank: that holds the water)
-- edit
Safe meaning ...
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Is osmosis due to osmotic pressure?
Okay, I am getting real confused on how water flows from a hypotonic solution to a hypertonic solution through a semipermeable membrane. It is known that hypertonic solutions have higher osmotic ...
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Why does solvent particles move towards solution when semi permeable membrane is added?
When a SPM is added in between solute and solution the water molecules move towards salt water even though the concentration is same both sides. Why does this happen? According to SPM's perspective, ...
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Reverse osmosis membrane used as an osmosis membrane
I recently came across the so-called 'thin-film composite membranes'. They are build up of layers with one of them being semipermeable. As I'm not well versed in chemistry, I'm unsure, if these ...
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Is that correct to say that osmosis happens with water only?
Is that correct to say that osmosis happens with water only (based on the definition below) or it can happen with other liquids as well?
I've read the following definition in a book called "BRS - ...
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Two different containers full up with pure water and salt water in osmosis. What happens?
I would like to understand what happens when there are two containers which are connected together and separated by only semipermeable membrane. Then in one container I fill up (all the way to the top)...
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What solute should I use with dialysis tubing if I want a 100% retention rate?
I purchased dialysis tubing from the Carolina company.
The molecular cut off is 12,000-14,000 Daltons and I've been using table sugar for my experiments with it to raise columns of water. While the ...
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How does osmosis work?
I have (very) basic knowledge in chemistry.
I am curious as to why osmosis works. I read a couple of introductory chemistry books and also searched online but most explanations I found only explained ...
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Would osmosis occur between two solutions of equal moles of water but unequal moles of a nonpolar molecule?
Earlier I learned that osmosis was, like diffusion, a result of the laws of entropy, kinetic energy, and random movement. However, if you have two solutions of equal moles of water, then net movement ...
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Can H4O 2+ form?
Like $\ce{NH4+}$ ,Is there any possibility of formation of $\ce{H4O^{2+}}$ (of tetrahedral structure)?
My theory is: it can be formed by osmosis setup where heavy acids like $\ce{H3PO4}$ or $\ce{...
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Why wouldn't solvents be interchanged in isotonic solutions?
While studying osmosis, my book remarks that
Two solutions having same osmotic pressure at a given temperature are called isotonic solutions. When such solutions are separated by semipermeable ...
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What happens when a semipermeable membrane allows only one solute to pass through?
I'm essentially a medical student where we deal a lot with osmosis. But when we are taught, it is done generally with only a single solute in consideration.
What if two different solutes are used on ...
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How will water move across a membrane that is permeable to only one solute?
If there are two solutions separated by a membrane, which is permeable only to one solute and the solvent, will there be any net movement? Let's assume the two solutes are glucose and sodium ions, ...
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How to figure out which substance has the highest osmotic pressure? [closed]
In preparing for an exam and I'm trying to solve the following question. I'm clueless. What should I do?
Which of the following water solutions has the highest osmotic pressure?
\begin{align}
\...
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