All Questions
13
questions
5
votes
1
answer
94
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Relation between dilution and osmotic pressure
The following question is taken from IAT 2024, an entrance test for research institutes in India at the high school level:
Which one of the following plots correctly describes the variation of ...
- 159
2
votes
1
answer
48
views
Does osmotic pressure depend on the quantities of the outer membrane solvent?
$$\pi V = nRT$$
What is the osmotic pressure at $\pu{25^oC}$ of an aqueous solution of 0.0010 M $\ce{C12H22O11}$ (sucrose)?
We just need to substitute the data into equation (13.4)
$$\pi = \frac{\pu{...
- 131
1
vote
1
answer
78
views
What is the exact definition of isotonic solutions?
Background of the Question
I am a high school student so maybe my understanding of this topic is quite less, so apologies in case I have asked an elementary question.
My chemistry sir taught that :-
...
- 163
0
votes
0
answers
24
views
Osmotic pressure for non-electrical neutral region of a solution
For calculation of the osmotic pressure, we can use Van't Hoff equation as below:
π=CRT
If we put the solution in an electrical field, the cations and anions move towards negative and positive pols, ...
- 17
1
vote
1
answer
487
views
Do solids in a solution also apply partial pressure? If yes, can this be used as an intuitive explanation for osmosis?
I know that in a mixture of different gases, we can assign every type of gas molecules a partial pressure so that the total pressure is the sum of all partial pressures. This can be extended to gas ...
- 19
2
votes
1
answer
139
views
How does hydraulic equilibrium work on the particulate level?
I recently learned that osmosis occurs when there is a semipermeable membrane between pure water and a solution of water. The pure water then fills up the solution's side until, as my textbook put it,
...
- 21
3
votes
1
answer
2k
views
Using osmotic pressure to find the molar mass of a compound
Working on-board a research vessel somewhere at sea, you have (carefully) isolated 12.5 micrograms $(\pu{12.5E-6 g})$ of what you hope is pure saxitoxin (a non-electrolyte) from a poisonous (and quite ...
- 45
4
votes
0
answers
66
views
membrane for a reverse osmosis desalination experiment
We are second year cram schoolers , we are currently working on a project tackling water desalination by reverse osmosis and are required to do an experience. During the process, we encountered some ...
1
vote
1
answer
2k
views
Molar mass of a protein from osmotic pressure
The height of a column of liquid that can be supported by a given pressure is inversely proportional to its density. An aqueous solution
of $0.010 g$ of a protein in $10 mL$ of water at $20^oC$ ...
- 349
2
votes
1
answer
2k
views
What does the osmotic pressure do in an electrolytic solution?
I have learnt that in an electrochemical cell, the osmotic pressure in the solution hinders the flow of ions from the electrode to the solution, rather some ions may accumulate on the electrode ...
- 27
1
vote
1
answer
14k
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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}
\...
- 113
1
vote
1
answer
1k
views
Osmotic Pressure
If the osmotic pressure of a 0.010 M aqueous solution of sucrose at 27˚C is 0.25 atmosphere, then the osmotic pressure of a 0.010 M aqueous solution of NaCl at 27˚C is
(a) 0.062 atm
(b) 0.12 atm
(c)...
- 1,145
3
votes
1
answer
478
views
Osmolarity and osmotic pressure
You have discovered a new strain of bacteria called Tankeromyces subtilis that has a special outer membrane that is capable of withstanding high levels of osmotic pressure. These bacteria can survive ...
- 43