SolutionHard
Question
Insulin (C2H10O5)n is dissolved in a suitable solvent and the osmotic pressure p of the solution of various concentration (in kg/m3) is measured at 20oC. The slope of a plot of p against c is found to be 8.134 × 10-3 (SI units) The molecular weight of the insulin (in kg/mol) is :
Options
A.4.8 × 105
B.9 × 105
C.293 × 103
D.8.314 × 105
Solution
π = CRT
π =
RT C = moles/liter, c = kg/m3
M =
[π/c = 8.314 × 10-3]
[T = 293 k]
M =
= 293 × 103
π =
RT C = moles/liter, c = kg/m3M =
[π/c = 8.314 × 10-3][T = 293 k]
M =
= 293 × 103 Create a free account to view solution
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