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(I) Mention one important application of Henry's law. (II) Calculate the osmotic pressure of a solution obtained by mixing 100 cm3 of 0.25m and urea 100 cm3 of 0.1 m solution of cane sugar [R= 0.0821 L atm/mol/K] |
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Answer» (i) soft drink and soda water packing under high pressure (ii) Number of mole of cane sugar = \(\frac{0.1\times100}{1000}\) = 0.01 mol Total volume, V = (100 + 100) cm3 = 200 cm3 = 0.2L For osmotic pressure, \(\pi=\frac{(n_1+n_2)}{v}RT\) = \(\frac{(0.025+0.01)}{0.2}\) x 0.082 x 293 = \(\frac{0.035}{2}\) × 0.082 × 293 = 4.2 atm |
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