44 g/mol), which yields 0. Since NaCl dissociates into two ions, the van 't Hoff factor is 2.
Understanding Osmotic Pressure Through Calculation
For a dilute solution, the osmotic pressure (π) is proportional to the absolute temperature (T) and the molar concentration (C) of the solute particles. For non-electrolytes like glucose or sucrose, which do not dissociate, the value of 'i' is 1.
The Role of the Van 't Hoff Factor The van 't Hoff factor (i) is a critical multiplier in the equation that accounts for the number of particles a solute dissociates into in solution. This colligative property depends solely on the number of solute particles in a given volume of solution, not on their chemical identity.
How to Calculate Osmotic Pressure Using the Van 't Hoff Factor
Multiply the values of i, C, R, and T together to obtain the osmotic pressure (π). 0821 L·atm·K⁻¹·mol⁻¹) * (298 K), yielding an osmotic pressure of approximately 19.
More About How do you calculate osmotic pressure
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