Table: Diffusion Coefficients D
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Molecular mass M and Diffusion coefficients D of some macromolecules in water at 20
o
C
Substances
M (kg mol
-1
)
D (m
2
s
-1
)
Sucrose
0.342
4.586x10
-10
Ribonuclease
13.7
1.19x10
-10
Lysozyme
14.1
1.04x10
-10
Hemoglobin
68
6.9x10
-11
Collagen
345
6.9x10
-12
Urease
480
3.46x10
-11
Myosin
493
1.16x10
-11