What is the Osmosis pressure?
Osmotic pressure is the pressure which needs to be applied to a solution to prevent the inward flow of water across a semipermeable membrane.
This phenomena is to be occurred due to the tendency of a pure solvent to move through a semi-permeable membrane into a solution containing a solute to which the membrane is impermeable.
Osmotic pressure is the pressure which needs to be applied to a solution to prevent the inward flow of water across a semipermeable membrane.
This phenomena is to be occurred due to the tendency of a pure solvent to move through a semi-permeable membrane into a solution containing a solute to which the membrane is impermeable.
| Illustration of Osmosis |
What is Osmometer
An osmometer is a device for measuring the osmotic strength of a solution, colloid, or compound.
There are several different techniques employed in osmometry:
An osmometer is a device for measuring the osmotic strength of a solution, colloid, or compound.
There are several different techniques employed in osmometry:
- Vapor pressure depression osmometers determine the concentration of osmotically active particles that reduce the vapor pressure of a solution.
- Membrane osmometers measure the osmotic pressure of a solution separated from pure solvent by a semipermeable membrane.
- Freezing point depression osmometer may also be used to determine the osmotic strength of a solution, as osmotically active compounds depress the freezing point of a solution.
- Osmometers are useful for determining the concentration of dissolved salts or sugars in blood or urine samples.
- Osmometry is also useful in determining the molecular weight of unknown compounds and polymers
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