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Acconding to vau't Hobb equation , thie osmolic pressure is given by - = iMRT whene , IT = osmotie pressure (atm) i = van't Hobb's facton (it dendes the number of ions produced pen solute molecule when dissolved) M = Molarity of solution (mol/L) R = Ideal gas constant (0.082057 Latm moi' k'). T- Absolute temperature (K) Given, T = 25.0 toon - 25.0 atm (5: 1 atm = 760 tonn) 760 = 3.289x10² am i=1, because the solute does not dissociate in the Solvent. T = 25 °C = (25+273) K = 298 K page=1
:: 3.289 x 10² atm = 1 XM mer- EP x 0.082057 Katm mot w x 298 K 7 M = 1,345x103 mol/L 1.345x1o mo? Now, 100 mL solution contains = x 100.0 mL = 1.345x164 mol 1000 mL So, 1.345x10" mol = 4.82 gram il mol - 1x4.82 - 1.345810-4 gram = 35836.43 gram .: Molar mass of the solute = 35836.43 grau/mol | CANSWER) page 2
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