A solution is prepared by dissolving \( 0.6 \mathrm{~g} \) of urea (molar mass \( =60 \mathrm{~g...

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A solution is prepared by dissolving \( 0.6 \mathrm{~g} \) of urea (molar mass \( =60 \mathrm{~g} \mathrm{~mol}^{-1} \) ) and \( 1.8 \mathrm{~g} \) of glucose (molar mass \( =180 \mathrm{~g} \) \( \left.\mathrm{mol}^{-1}\right) \) in \( 100 \mathrm{~mL} \) of water at \( 27^{\circ} \mathrm{C} \). The osmotic pressure of the solution is \( \left(R=0.08206 \mathrm{~L}\right. \) atm \( \left.\mathrm{K}^{-1} \mathrm{~mol}^{-1}\right) \)
(a) \( 8.2 \) atm
(b) \( 2.46 \mathrm{~atm} \)
(c) \( 4.92 \mathrm{~atm} \)
(d) \( 1.64 \mathrm{~atm} \)
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