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Osmotic pressure in Pa of 1.0 g polymer (M = 185,000) in 450 mL at 37 C?
A3.1 Pa
B310 Pa
C0.31 Pa
D31 Pa
Answer & Solution
Correct answer: D. 31 Pa
n = 5.41 × 10^-6 mol in 4.5 × 10^-4 m3 at 310 K gives pi = nRT/V, which is about 31 Pa.
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