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
View Solution FreeMore Solution Questions
I2 dissolves appreciable in aqueous solution of KI forming :-...If 10-4 dm3 of water is introduced into a 1.0 dm3 flask to 300 K, how many moles of water are in the vapour phase when e...The elevation in boiling point method is used for the determination of molecular masses of...A quantity of 6.4 g sulphur dissolved in 200 g of CS2 raises the boiling point of the solvent by 0.32°C. Boiling point o...Consider separate solutions of 0.500 M C2H5OH(aq), 0.100 M Mg3(PO4)2(aq), 0.250 M KBr(aq) and 0.125 M Na3PO4(aq) at 25oC...