Acertain globular protein particle has a density of 1246 kg ml. It falls through
water (having coefficient of viscosity 8.91 x 10* Pa s) with a terminal speed of
18.33 10 ms'. Find the radius of the particle.
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Answer:
Mass of sodium ions
=
92
g
Molar mass of sodium ions
=
23
g/mol
Number of moles of sodium ions
=
23g/mol
92g
=
4
Mass of water
=
1
kg
Molality
=
Mass of water (in kg)
number of moles of sodium ions
=
1
4
=
4
m
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