COMEDK · Chemistry · 17. Solutions
\(200 \mathrm{ml}\) of an aqueous solution contains \(3.6 \mathrm{~g}\) of Glucose and \(1.2 \mathrm{~g}\) of Urea maintained at a temperature equal to \(27^{\circ} \mathrm{C}\). What is the Osmotic pressure of the solution in atmosphere units?
\(\mathrm{R}=0.082 \mathrm{~L} \mathrm{~atm} \mathrm{~K}{ }^{-1} \mathrm{~mol}^{-1}\) : Molecular Formula: Glucose is \(\mathrm{C}_6 \mathrm{H}_{12} \mathrm{O}_6\) and of Urea is \(\mathrm{NH}_2 \mathrm{CONH}_2\)
- A 4.92
- B 9.84
- C 1.56
- D 6.24
Answer & Solution
Correct Answer
(A) 4.92
Step-by-step Solution
Detailed explanation
The molar mass of Glucose (\(C_{6}H_{12}O_{6}\)) is \(6 \times 12 + 12 \times 1 + 6 \times 16 = 180 \text{ g/mol}\). The molar mass of Urea (\(NH_{2}CONH_{2}\)) is \(14 + 2 + 12 + 16 + 14 + 2 = 60 \text{ g/mol}\). The number of moles of Glucose is…
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